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2 years ago

7

Which of the equations has a solution of 7.

2 answers:

Feliz [49]2 years ago

7 0

The answer to th question is 7.

lesya692 [45]2 years ago

6 0

The answer is C) z - 2 = 5.

z - 2 = 5

Add 2 to both sides of the equal sign.

z - 2 + 2 = 5 + 2
z = 7.

Therefore, the solution is 7.

Hope this helps!

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In the library at lenape elmentary school, there are 3/8 as, many fiction books as there are nonfiction books. There are 44 book

N76 [4]

Answer:

12 fiction books.

Step-by-step explanation:

Let b represent number of non-fiction books.

We have been given that in the library at Lenape elementary school, there are 3/8 as many fiction books as there are nonfiction books. So number of fiction books would be $\frac{3}{8}x$ .

We are also told that there are 44 books in school library. We can represent this information in an equation as:

$x+\frac{3}{8}x=44$

Let us solve for x.

$\frac{8x}{8}+\frac{3}{8}x=44$

$\frac{8x+3x}{8}=44$

$\frac{11x}{8}=44$

$\frac{11x}{8}\cdot \frac{8}{11}=44\cdot\frac{8}{11}$

$x=4\cdot 8$

$x=32$

Therefore, there are 32 non fiction books in the library.

Number of fiction books would be $\frac{3}{8}x\Rightarrow \frac{3}{8}*32=3*4=12$

Therefore, there are 12 fiction books in the library.

5 0

2 years ago

What is the inverse of the function f(x) = 2x + 1?|

padilas [110]

Answer:

1st option

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2x ( divide both sides by 2 )

$\frac{y-1}{2}$ = x

Change y back into terms of x with x being the inverse h(x)

h(x) = $\frac{x-1}{2}$ = $\frac{1}{2}$ x - $\frac{1}{2}$

6 0

2 years ago

Plz help me people guys xx :)

kaheart [24]

Answer:

48.9

Step-by-step explanation:

Subtract 2 from 99.8 = 97.8

Divide 97.8 by 2 - 48.9

6 0

2 years ago

Which of the following equations is equivalent to <br> 3/4a - 6 =1/4

yaroslaw [1]

Is there a picture of the answers to go with this ?

6 0

2 years ago

Read 2 more answers

Johan and Rahul shared a chocolate bar. Johan took 3\7

serious [3.7K]

Answer:

Rahul by 1

Step-by-step explanation:

Johan - 3/7

Rahul - 4/9

1. Convert fractions

3/7 -> 27/63

4/9 -> 28/63

28/63 > 27/63

Rahul took more by 1/63

8 0

2 years ago