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3 years ago

Tues. 2.15 Question: Mr. Becker solved the

Mathematics

1 answer:

Mademuasel [1]3 years ago

4 0

Answer:

YES X=3

Step-by-step explanation:

10x=3x+21

-3x -3x

7x=21

________ . *DIVIDE BY 7 on each side

7 7

X=3

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What is $7.20 after<br>tax of 4.5%?

Igoryamba

Answer:

$7.52 rounded

Step-by-step explanation:

$7.20x 104.5% (or 1.045)= $7.524

rouded, $7.524 would be $7.52

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3 years ago

A recipe for oatmeal cookies makes 24 cookies. The recipe calls for 2 1/2 cups of flour. Penny wants to make 3/4 of the recipe.

barxatty [35]

Answer:

Penny needs $1\frac{7}{8}$ cups of flour to make 3/4 of the recipe.

The recipe will make 18 cookies.

Step-by-step explanation:

We have been given that a recipe for oatmeal cookies makes 24 cookies. Penny wants to make 3/4 of the recipe.

To find the number of cookies that will 3/4 of the recipe will make, we need to find 3/4 of 24 as shown below:

$\frac{3}{4}\text{ of recipe}=24\times \frac{3}{4}$

$\frac{3}{4}\text{ of recipe}=6\times \frac{3}{1}$

$\frac{3}{4}\text{ of recipe}=18$

Therefore, the recipe will make 18 cookies.

We are also told that recipe calls for 2 1/2 cups of flour. To find amount of flour needed for 3/4 of the recipe, we will multiply 2 1/2 cups by 3/4 as:

$\text{Cups of flour needed to make 3/4 of recipe}=2\frac{1}{2}\times \frac{3}{4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{5}{2}\times \frac{3}{4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{5\times 3}{2\times 4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{15}{8}$

$\text{Cups of flour needed to make 3/4 of recipe}=1\frac{7}{8}$

Therefore, Penny needs $1\frac{7}{8}$ cups of flour to make 3/4 of the recipe.

7 0

3 years ago

Match the equation with its corresponding solution for x. 4x + 7 = 35

lyudmila [28]

Are you wanting to solve for x? If so:
4x + 7 = 35
We want to isolate the variable, so subtract 7 from both sides. You will get:
4x = 28
Now, divide each side by 4 to get X by alone. This will give you:
x = 7
I hope this helped.

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3 years ago

HELP ME I WILL GIVE POINTS

OlgaM077 [116]

Answer:

1. 32

3. -11

Step-by-step explanation:

(To meet character limit)

4 0

2 years ago

Read 2 more answers