3 years ago

Help fast! give extra points

Mathematics

2 answers:

AleksandrR [38]3 years ago

7 0

Answer:

3X x 5 = 15x - 3 = 12x

Mumz [18]3 years ago

4 0

12 x is the answer calculate it

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Step-by-step explanation:

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In a class 5/8 of pupils are boys.If 15 girls are in that class how many boys are there

Kobotan [32]

Answer:

Step-by-step explanation:

If 5/8 are boys then

1 - 5/8 = girls

3/8 = girls

3/8 of the total are girls

Let x = total

3/8 ( x) = 15

8/3 * 3/8 * x = 15 * 8/3

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5/8 * 40

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I need a answer to 77.5% of 13.270

den301095 [7]

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Step-by-step explanation:

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14. Michelle simplified an expression for the perimeter of the rectangle below and got X + 35.

Zigmanuir [339]

Answer:

The correct expression for the perimeter is $P=(\frac{5}{3}x+70)\ units$

see the explanation

Step-by-step explanation:

The complete question in the attached figure

Let

L ----> the length of rectangle

W ---> the width of rectangle

we know that

The perimeter of rectangle is equal to

$P=2(L+W)$

In this problem we have

$L=(\frac{5}{6}x+23)\ units$

$W=12\ units$

substitute the values

$P=2(\frac{5}{6}x+23+12)$

$P=2(\frac{5}{6}x+35)$

$P=(\frac{10}{6}x+70)\ units$

Simplify

$P=(\frac{5}{3}x+70)\ units$

Michelle didn't multiply the sum of length and width by 2

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Line A passes through the points (1, -1) and (-2, 8).

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The answer to this question will be D

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