**Answer:**

a.) 4a+8b

b.) 9x-2y

**Step-by-step explanation:**

**hope this helps :)**

a) 12a + 8b - 8a

4a + 8b

b)6x - 2y + 3x

9x - 2y

4a + 8b

b)6x - 2y + 3x

9x - 2y

another math question because i do not understand math at all

**Answer:**

8/15

**Step-by-step explanation:**

There is absolute value, so the a and b become positives.

But there is a negative on the outside, meaning - (a+b)

So:

-1 2/3 - 1

______

2 - (-3)

Then..

-2 2/3

______

5

You can convert each number to a complete fraction and use keep change flip.

2 2/3 = 8/3 and 5 = 15/3

8/3 divided by 15/3 is..

8 x 3

_. _

3. 15

You can cancel out the 3's and then multiple 8/1 x 1/15

That equals 8/15, since you can't simplify it anymore.

The answer to the question is 8/15

A bus travels at a constant speed from point A to point B, which are 600 km apart. Some time later, a motorcyclist begins the trip from A to B, traveling at 100 km/h. The motorcyclist overtakes the bus at 150 km from A, and continues on to point B. The motorcyclist arrives at B, rests for 1 hour, and begins the return trip to A, crossing paths with the bus. When the bus arrives at B, the motorcyclist is 200 km from B. How far from B did the motorcycle and bus meet the second time?

**Step-by-step explanation:**

the motorcyclist starts x hours after the bus.

it takes the motorcyclist 1.5 hours to meet the bus the first time, 6 hours to reach B, rest 1 hour and go another 2 hours before the bus arrives at B.

so, the bus needs

x + 9 hours to reach B.

x + 1.5 hours for 150 km (for the first meeting with the motorcyclist).

the speed of the bus is 600/(x + 9) km/h or 150/(x + 1.5) km/h.

so,

600/(x + 9) = 150/(x + 1.5)

4/(x + 9) = 1/(x + 1.5)

4(x + 1.5)/(x + 9) = 1

4(x + 1.5) = x + 9

4x + 6 = x + 9

3x + 6 = 9

3x = 3

x = 1

the motorcyclist starts 1 hour after the bus.

the speed of the bus is

600/(x + 9) = 600/(1 + 9) = 600/10 = 60 km/h

when the motorcyclist is starting its return trip, he is 7 hours after his start, and the bus is 7+x = 7+1 = 8 hours after its start, that means at

8×60 = 480 km of its total trip of 600 km.

120 km are still left for the bus to go.

from that point on both travel the same time y going with their speeds until they meet the second time.

the motorcyclist travels 100y km building up distance from B, while the bus travels 60y km reducing the 120 km distance from B.

when they meet the second time, the distance from B for the motorcyclist is the same as the remaining distance for the bus.

so,

100y = 120 - 60y

160y = 120

y = 120/160 = 3/4 = 0.75 hours

so, they meet at

100 × 0.75 = 75 km from B.

Geometry

Answer with a proper explanation

**Answer:**

15 sides

**Step-by-step explanation:**

As we know the full angles of a polygon is 360°

**And**

Each side has angle 24°

So,

n = 360/24

n = 15 sides

I hope my answer helps you.

Answer:

The polygon has 5 sides.

Step-by-step explanation:

Given in the diagram, the angle between the ends of each side is given i.e. 24degrees between ends of a side from the centre. Or it can also be said that each side of the polygon subtends an angle at the centre 'O' i.e. each 24*.

=> We know that sum of angles around a point = 360*, so sum of angles around centre = 360*

And 24* in the centre subtends a side of the polygon;

Using the logic - no. of sides = 360*/24* = 15 = 15 sides

The polygon has 5 sides.

Step-by-step explanation:

Given in the diagram, the angle between the ends of each side is given i.e. 24degrees between ends of a side from the centre. Or it can also be said that each side of the polygon subtends an angle at the centre 'O' i.e. each 24*.

=> We know that sum of angles around a point = 360*, so sum of angles around centre = 360*

And 24* in the centre subtends a side of the polygon;

Using the logic - no. of sides = 360*/24* = 15 = 15 sides

Which points have a distance of 6 units between them?

Select all that apply.

B, A, and C. If your just looking at the points on a graph than those would three sets of points have direct lines that are 6 points apart

**Answer: The answers are A, B, C.**

**Step-by-step explanation:**

A chef made 150 cups of chili and sold 60% of it. A serving size of the chili is 1 2/3 cups. How many servings of the chili were sold.

(Unit: expressions & equations)

150× 60% ÷ 1⅔

150×60/100 ÷ 5/3

15 × 6 ×3/5

3 × 18

54

**54 **servings of the chili were sold.

The **number **of cups of chili that he **sold **will be will be 90 cups. Then the number of **servings **of the chili sold will be 54.

The amount of any product is given as though it was a proportion of a hundred. The** ratio **can be expressed as a quarter of 100. The phrase % translates to one **hundred percent**. It is symbolized by the character '%'.

A chef made 150 cups of chili and sold 60% of it. Then the **number **of cups of chili that he sold will be calculated as,

⇒ 60% of 150

⇒ 0.60 x 150

⇒ 90 cups

The **serving **size of the chili is 1 ²/₃ cups.

Convert the **mixed fraction **number into a **fraction **number, then we have

1 ²/₃ cups = 1 + 2/3

1 ²/₃ cups = 5/3 cups

Then the number of **servings **of the chili sold will be calculated as,

⇒ 90 / (5/3)

⇒ 90 x (3 / 5)

⇒ 18 x 3

⇒ 54

The **number **of cups of chili that he **sold **will be will be 90 cups. Then the number of **servings **of the chili sold will be 54.

More about the **percentage **link is given below.

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Which net represents the three-dimensional figure shown on the right? Will give brainliest!

**Answer:**

Looks like the top left

**Answer:**

It's the 1st one from the left!

**Step-by-step explanation:**

`d=3t` represents the relationship between the distance `\left(d\right)`in inches that a snail is from a certain rock and the time `(t)` in minutes.

a. What does the number `3` represent? b. How many minutes does it take the snail to get `9` inches from the rock c. How far will the snail be from the rock after `9` minutes?

**Answer:a.3 is the coefficient**

**b.3minutes**

**c.27inches**

**Step-by-step explanation: **

**a. In d=3t equation, d and t are variables. 3 is the coefficient for 't'.**

**b. In d=3t , d is 9inches.**

**so 9 = 3t**

**or t = 9/3 =3minutes**

**c. In d= 3t, t is 9minutes.**

**So d= 3*9 = 27inches.**

**Answer: b.3minutes c.27inches**

**Step-by-step explanation:**

identify the slope and y-intercept of the function y = -2x+4

The y intercept is 0 because when you find x it’s 2 so you plug that in and you get y=0

**Answer:**

Slope = -2

y-intercept = (0, 4)

**Step-by-step explanation:**

The equation is written in slope-intercept form, y = mx + b, where "m = slope" and "b = y-intercept". Thus, we have to identify what part of the equation is part of each element in slope-intercept form:

Slope-intercept form

y = mx + b

Equation:

y = -2x + 4

m = -2

b = 4

Thus, the slope is -2 and the y-intercept is (0, 4)

Is the relationship between the distance traveled and the time shown in the graph proportional?

no it isn’t because I said so

**Answer:**

**NO**

**Step-by-step explanation:**

it's starts at the origin but is not a straight line.

(part 2 of my request, check my profile questions to see more thx! <3)

Answer:

Time +1, Temp +2

Students +5, Magazines +50

Trees +5, Apples +100

I don’t know cook but what the other guy said

At a school cafeteria, a staff person surveyed the food preferences of 35 students. For every five students, two said they liked liked heathy food. How many students preferred heathy foods.

**Answer: 14 students.**

**Step-by-step explanation:**

7 students preferred heathy food

please help me to answer this (has to do with least common factors and stuff like that)

**Answer:**

Large gear: 2 revolutions, 24 teeth

Small gear: 3 revolutions, 24 teeth

**Step-by-step explanation:**

You want the **number of teeth** that have **touched** when a **12-tooth gear** and an **8-tooth gear** turn until they have the **same relative position** as when they started.

The least common multiple (LCM) of 8 and 12 is the smallest integer that is a positive integer multiple of both these numbers. That value is ...

24 = 8·3 = 12·2

It is often found quickly by making use of your knowledge of multiplication tables.

How to find itThe LCM can be found by looking at the **unique factors** of the numbers, taking each to the **highest of the powers**:

8 = 2³

12 = 2² × 3

Among the factors 2 and 3, the highest powers are 2³ and 3¹, so ...

2³ × 3¹ = **24**

is the LCM.

The LCM is also the product of the numbers, divided by their greatest common factor (GCF):

LCM(8, 12) = 8·12/4 = **24**

__

*Additional comment*

The problem statement is telling you to look for the *same number* in the two right columns of the table. That number is 24. It goes in the blanks at the bottom.

24 and 42 that’s ye answer

Sam’s Soups is open 6 days a week, 76 hours in all. Its hours are the same every day, except on Saturday and Sunday. On those days, it is open 2 hours longer. How long is Sam’s Soups open on Sunday? Use an equation to solve.

Answer:

Step-by-step explanation: try 14

4/5% of 30: Estimate

Answer:0.24

Step-by-step explanation:

**Answer:**

0.24

**Step-by-step explanation:**

⅘% of 30

⅘ = 0.8

0.8% of 30

eg: 0.8 = x 30 = y

[tex]\frac{x*y}{100}[/tex] (this is the formula for calculating the percentage of a number)

[tex]\frac{0.8*30}{100}[/tex] = 0.24

Heloo need help on mathe ples

**Answer:**

add all the sides

**Step-by-step explanation:**

The easiest way to solve this is creating two shapes; cut the top off so it's a square-like shape, and you'll also have the long rectangle at the bottom.

the first shape's area is 3.8 x 4 = 15.2

the second is 13.05 x 3.6 = 46.98

since originally it's one shape, add them together. the area is 62.18 ft^2.

the first shape's area is 3.8 x 4 = 15.2

the second is 13.05 x 3.6 = 46.98

since originally it's one shape, add them together. the area is 62.18 ft^2.

BRAINLIEST Which net represents the three-dimensional figure shown on the right?

The answer is C, there are many formulas associated with it.

The formula for c for the current figure is 2(base * height) + s1 + s2 + s3(length)

But the formula I use is a*b + 3 * b * height, where a and B are sides

The formula for c for the current figure is 2(base * height) + s1 + s2 + s3(length)

But the formula I use is a*b + 3 * b * height, where a and B are sides

The net represents the **three**-**dimensional **figure is

2(1/2 x 3 x 4) + 4 x 2 + 3 x 2 + 5 x 2

The **correct **option is C.

Mathematical **expressions **consist of at least two numbers or **variables**, at least one **arithmetic **operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows:

**Expression**: (Math Operator, Number/Variable, Math Operator)

We know that the **formula **for calculating the **Area **of prism is

= 2 ( base x height) + (s1 + s2 + s3) length

But according to the given figure we have to

= length x width + 3 x width x height

= ab + 3bh

Learn more about **Expression **here:

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Solve the equation. What is X?

6 ( x − 2 ) = −18

(It is NOT -5, 5, -6, 6 I kept on getting that as the answer)

[tex]6(x-2)=-18[/tex]

Distribute:

[tex](6)(x)+(6)(-2)=-18[/tex]

[tex]6x-12=-18[/tex]

Add 12 to both sides:

[tex]6x-12+12=-18+12[/tex]

[tex]6x=-6[/tex]

Divide both sides by 6:

[tex]\dfrac{6x}{6} =\dfrac{-6}{6}[/tex]

[tex]\fbox{x = -1}[/tex]

So the answer would be x=-1

Geometry

Answer with a proper explanation

**Answer:**

*We know that nonagon have total of 1 260 angles.*

1 260 = 8x + 4x

1 260 = 12x

**x = 105**

Therefore, the value of x is 105.

8 angles have 105 degrees and the other one is 420.

**Step-by-step explanation:**

The answer of this equation is X =105

pleace is math of 8th

**Answer:**

x = 8

**Step-by-step explanation:**

1/2 x - 2x = -5 -7

(1-4)/2 x = -12

-3/2 x = -12

3/2 x = 12

x = 12 · 2/3

x = 4 · 2

x = 8

Pretty sure the answer is x=8

Please help due today!!

Number 2 is a c and d

Number 12. Is answers / A, C, and D

In what ways was Brian struggling for survival in the first two chapters (both physically and emotionally)? Use RACE to respond. Book is HATCHET.

Answer:he used the hatchet by making a fire

Step-by-step explanation:

He was suffering mentally because of his parents divorce, and that he had to go to his father at summer. Physically: by crashing into the plane and trying to survive all alone in the forest with nothing but a hatchet.

Prentice Hall Mathematics Course 1 Chapter 2 page. 77

------------------------------------------------

a. COOKING Q: The largest pan of lasagna weighed 3477 pounds. The length of the pan was ten times its width. Write an algebraic expression for the length of the pan of lasagna in terms of its width W.

b. The lasagna measured 7 feet wide. Evaluate the expression to find the length of the pan of lasagna

----------------------------------------------------------------------------------

Please answer this question quick!!

**Answer:**

sorry I have no clue I don't like mathe either the half of the reason I can't answer it

The **expression **of length in terms of width is L = 10W and the **length **of the **pan** when the **width **is 7 feet will be 70 feet.

A **mixture **of variables, numbers, addition, subtraction, multiplication, and division are called **expressions**.

A statement expressing the equality of two **mathematical expressions **is known as an equation.

Suppose, the **length **and **width **of the pan are L and W corresponding.

As per the given,

(a)

The **length **of the pan was ten times its width.

L = 10W

The above **expression **is the length of the pan in terms of width.

(b)

The lasagna measured 7 feet wide.

L = 10 x 7 = 70 feet

Hence "According to the **formula **L = 10W, the length of the **pan **will be 70 feet when the width is 7 feet.".

To learn more about **expression**,

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Put an Actual reasonable answer for the question please.

**Answer:**

D (Alicia did 5 more jumping jacks per minute than Melissa.)

**Step-by-step explanation:**

Alicia's rate is 30 jumping jacks per minute. You can use the formula m=(y2-y1)/(x2-x1) to find the slope/rate. The two points in the table you can use are (1,30) and (2,60). You can plug those coordinates into the slope formula. (60-30)/(2-1)=30/1= 30 jumping jacks per minute. To find the rate of change/slope for Melissa, you can use the same formula m=(y2-y1)/(x2-x1). The two points you could plug in are (0,0), and (4,100). (100-0)/(4-0)=100/4=25. Melissa does 25 jumping jacks per minute.

That’s hard wow ur smart I cant

Help again plessssssssss

Answer:

Step-by-step explanation:

20 + 30 + 30 then 792 + 260 get your answer for both and add the answers together

**Answer:**

**Step-by-step explanation:**

the answer is 23.4 ?

The **number **of hours that Sam’s Soups is open on **Sunday **will be 14 **hours**.

The allocation of weights to the important **variables **that produce the **calculation's **optimum is referred to as a direct **consequence**.

Sam's Soups is open 6 **days **per week, 76 hours **altogether**. Its hours are similar consistently, besides on **Saturday **and** Sunday**. On those days, it is open 2 **hours **longer.

Let 'x' be the **number **of hours spent on **Saturday **and **Sunday**. Then the **equation **is given as,

x + x + (x - 2) + (x - 2) + (x - 2) + (x - 2) = 76

**Simplify **the equation, then we have

6x - 8 = 76

6x = 84

x = 14 horus

The **number **of hours that Sam’s Soups is open on **Sunday **will be 14 **hours**.

More about the **solution of the equation** link is given below.

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1. A straight fence is constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. A certain fence begins and ends with a post. If there are 7 posts, what is the total length of the fence?

**Answer:**

72

**Step-by-step explanation:**

First, we will multiply the **number of posts** (7) by the **posts' width** (6) to get 42.

Since there is a chain **between each post**, there are **6 chains**.

Multiplying the **number of chains** (6) by the **chains' length** (5), we get 30.

The question asks us to find the **total** **length** of the fence, so we add 42 and 30 and get 72.

Hope this helps!

Write a situation that matches the diagram, or make a diagram that matches the situation.

Use the picture I posted and draw/write (clearly) the correct answer.

Thank you! This needs to be done by today and quick.

so uh...which picture?

i can’t help if there isn’t a picture. maybe link one or post it on the comments

Consider the 3-digit number which are written by using only the digits 1,2,3,4,5. How many of these have two equal digits and one different digit?

**5 **3-digit numbers that have three equal digits.

we need to apply the** principle of inclusion-exclusion **to account for the fact that some 3-digit numbers may be counted multiple times.

any 3-digit number that has three equal digits will be counted twice once as a 3-digit number with two equal digits and one different digit, and once as a 3-digit number with three equal digits.

There are 5 choices for the digit that is repeated, and 1 way to arrange the digits, so there are 5 3-digit numbers that have three equal digits.

Therefore, we need to subtract 5 from the total number of 3-digit numbers that have two equal digits and one different digit.

60 number are 3-digit **numbers **that have two **equal **digits and one different digit.

**Permutation **and combination are ways to arrange **values **in a set. In permutation the order of **arrangement **matters, but in combination the order of arrangement does not matter.

The given digits are,

1, 2, 3, 4, 5.

Since, to find the 3 digits **numbers **which are written by using given digits, and have two equal digits and one different digit,

Here order of **arrangement matters**.

Use **permutation **formula,

From 5 digits, 3 are chosen,

Ways of **arrangement **= ⁵P₃

= 5! / (5-3)!

= 5! / 2!

= 5 x 4 x 3 x 2! / 2!

= 60

There are total 60 **different **ways, in which numbers can be **arranged**.

To know more about **Permutation **and **Combination **on:

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Caleb earns $_____ per hour_______ than Hassan.

^

more or less

**Answer:Caleb earns $24 per hour more than Hassan**

**Step-by-step explanation:**

819.40/34=24.08 rounded to 24

Hassan makes 21.5 per hour

**Answer:**

Caleb earns $2.6 per hour more than Hassan.

**Step-by-step explanation:**

eg:

Hassan: $21.5 = 1hr

Caleb: $819.40 = 34hr

819.40 ÷ 34 = $24.1 (earned by Caleb per hour)

$24.1 - $21.5 = $2.6 (more than Hassan)

Jess lists four factor pairs of 72 and as 2 x 36, 4 x 18, 6 x 12 and 8 x 9. Which factor is a prime number? ( I NEED AN ANSWER ASAP!)

The answer is 2. This is due to the fact that 2 only has factors that are 1 and itself.

Pretty sure the answer is 2

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