1. Factor to write an equivalent expression -9x + 15y
2.Expand to write an equivalent expression -5(7m - 2)

Answer:

4/7

Step-by-step explanation:

class total = 21

chance of picking one of 12 boys out of 21.

12/21 which can be simpilfied to 4/7

Answer: a

Step-by-step explanation:

1. use any of the points to find slope

2. using point (0,3) we go down two points

3. go across one point

4. \(\frac{-2}{1}\) = -2

5. slope is negative!!

Answer:

It should be "B."

Answer: p= 26 ft

*NOTE: I think because This is very tricky

Answer:

P=28 ft

Step-by-step explanation:

Answer:

1. 6 and 9 2. is 91$

Step-by-step explanation:

Answer:

Positive 0.05

Step-by-step explanation:

\((-1,-.3) (1, -.2)\)

\(m=\frac{-.2-(-.3)}{1-(-1)} =\frac{-.2+.3}{1+1} =\frac{0.1}{2} =0.05\)

Hope this helps

Answer:

For the perimeters, x must be equal to 2.

For the areas, it is either undefined, or something.

Step By Step Explanation:

You can first find the perimeters for both sides.

For the left shape, we add the two sides of 6 and x + 4 to get x + 10.

Then we multiply x + 10 by 2 because there are 4 sides, and we only got 2 sides.

The perimeter of the first shape is 2x + 20.

The second shape can be solved by doing the same thing by adding 2 and 3x + 4 to get 3x + 6.

3x + 6 times 2 is 6x + 12.

The second perimeter is 6x + 12.

If both sides are supposed to be equal, then we can write these two expressions we solved for like:

6x + 12 = 2x + 20.

Subtraction property of equality

6x + 12 - 12 = 2x + 20 - 12

Simplify

6x = 2x + 8

Again

6x - 2x = 2x - 2x + 8

Simplify

4x = 8

Division property of equality

4/4x = 8/4

Simplify

x = 2

So if x = 2, the perimeters will be the same.

You can confirm this by plugging it back into either equation.

For the areas, we just multiply the length and width for both shapes, so we get

6(x+4)  =  2(3x+4)

Since they are supposed to be equal.

We simplify and get

6x + 24 = 6x + 8

We know this is false and is not possible, since we can remove the 6x because it is on both sides.

We also know that 24 is not equal to 8 (who thought!)

:D

24 ≠ 8

So it is undefined or whatever you call it.

Answer:

the area of the rectangle : 2×(3x +4). for x = 2 this would be 2×(3×2 + 4) = 20, and that is different from 36 of the square. so, this is where the square does not hold up.

6×(x+4) = 2×(3x + 4)

6x + 24 = 6x + 8

24 = 8      I think

Step-by-step explanation:

Answer:

It would take 6 minutes for the sink to be completely emptied.

Answer:

It will be on 11.

Step-by-step explanation:

90 degrees on a clock is 1/4th of the clock or 4 numbers in this case.

Answer:

x = 22.5 cm

Step-by-step explanation:

In similar triangles, corresponding sides are in same ratio

\(\frac{FG}{AB}=\frac{FH}{AC} = \frac{GH}{BC}\\\\\\ \frac{GH}{BC}=\frac{FG}{AB}\\\\\frac{x}{15}=\frac{13.5}{9}\\\)

\(x = \frac{13.5}{9}*15\\\\x = 1.5*15\\\\x = 22.5\)

Answer:

-430.

Step-by-step explanation:

2 - 432= -430

Answer:

Where is the Question? Are you joking around or a you for real

Answer: 24967504

Step-by-step explanation:

Answer:

6x3

Step-by-step explanation:

sorry if wrong

Answer:

169

Step-by-step explanation:

We plug in 13 for n, and when we do so we get S(13) = 13² = 169. Hope this helps!

Answer:

169

Step-by-step explanation:

N=13 therefore you have to do 13 to the second power 13•13=169

Answer:

random answers!

Step-by-step explanation:

Answer:

k.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

The cube root of 64 is the number which when multiplied by itself three times gives the product as 64. Since 64 can be expressed as 2 × 2 × 2 × 2 × 2 × 2. Therefore, the cube root of 64 = ∛(2 × 2 × 2 × 2 × 2 × 2) = 4.

The cube root of 64 is 4.

Before solving the question, let's understand the concept of cube root.

The cube root of a number is the value obtained by multiplying it by itself three times or thrice. When we multiply 3 by itself three times, we get 3 x 3 x 3 = 27 = 3³, so the cube root of 27 is 3. Thus, we can say that the cube root gives a value that is basically cubed.

The cube root is denoted by ∛

Now, we will find the cube root of 64.

Firstly, we have to find factor 64.

64 = 2 × 2 × 2 × 2 × 2 × 2.

64 = ∛4³

64 = 4

Therefore, the cube root of 64 is 4.

To know more about cube root:

https://brainly.com/question/12105008

Answer:

$163+x  or$163x

Step-by-step explanation:

Answer:

Option B. For every 5 red pens, there are 15 blue pens.

Step-by-step explanation:

The statement expressed the ratio of the red pens to the total as 1 : 4.

This means that for every red pen in the box, there are 4 blue pens.

So, statement A is correct.

Let's skip B an look at other statements as well:

For C, the ratio will be 15 : 60 which translates to 1 : 4. So C is true.

Let's look at D.

This is an interesting one. The problem defines 18 as blue. So it means that 24 - 18 = 6

6 pens will be blue. Again 6 : 24 gives us 1 : 4. So D is true.

B gives us 5 : 24 which is not true.

Answer:

46.65%

Step-by-step explanation:

Discount = $ 114.30

Discount percent = \(\frac{discount price}{Normal price}*100\\\)

                             \(= \frac{114.30}{245}*100\\\\= 46.65\)

                             = 46.65%  

Answer:

i think the answer is A

Step-by-step explanation:

again "i think". so i could be wrong

Answer:

12 crates cuz it says the warehouse receives 12 crates

Step-by-step explanation:

Answer: 8

Step-by-step explanation: You can use division to solve.

Answer:

8 days

Step-by-step explanation:

1 day : -$1.26

? days : -$10.08

-10.08 ÷ -1.26 = 8

So ? = 8

Answer:

  3504.24 square meters

Step-by-step explanation:

You want the surface area of a cylinder of radius 18 m and height 13 m.

The surface area of a cylinder is given by the formula ...

  A = 2πr(r +h)

  A = 2(3.14)(18 m)(18 m +13 m) = 3504.24 m²

The surface area of the cylinder is about 3504.24 square meters.

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