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3 years ago

-2x + 7 = -32 i need all the steps

Mathematics

2 answers:

iris [78.8K]3 years ago

7 0

Answer:

x = 19.5

Step-by-step explanation:

-2x + 7 = -32 (subtract 7 on both sides)

-7 -7

-2x = -39 (Divide by -2)

x = 19.5

qaws [65]3 years ago

5 0

Answer:

first take the like terms of the equation take 7to the other side to make x as a subject of the formula then divide both side by -2 u will get 19.5 as the answer

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How to set up this problem

HACTEHA [7]

Answer:

The son is five years old

Step-by-step explanation:

Let the son's age be x

A man is five as old as his son, 5x

In five years, he would be three times as old as his son

In five years: son would be x+5

Father 5x+5

3(x+5)=5x+5

3x+15=5x+5

Collect like terms

15-5=5x-3x

10=2x

Divide by 2

10/2=2x/2

x=5

The son is five years old

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3 years ago

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20-12=8

8 divided by 75= 72

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3 years ago

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Maria is making a stained glass window in the form of a kite. the width of the window must be 15 in., and she only has enough st

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Kite Area = (Diagonal 1 * Diagonal 2) / 2
Diagonal 2 = 2 * Kite Area / Diagonal 1
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3 years ago

The vertices of a polygon are P(0,4), Q(5,4), R(5,−3) and S(0,−3). What is

andrezito [222]

Answer:

Perimeter of the polygon p = 24

Step-by-step explanation:

Step(i):-

Given the vertices of a polygon are

P(0,4) ,Q( 5,4) ,R( 5,-3) and S(0,-3)

The distance of PQ

$a = PQ = \sqrt{(4-4)^{2} +(5-0)^{2} } = \sqrt{25} =5$

The distance of QR

$b = Q R= \sqrt{(-3-4)^{2} +(5-5)^{2} } = \sqrt{49} =7$

The distance of RS

$c = RS = \sqrt{(0-5)^{2} +(-3+3)^{2} } = \sqrt{25} =5$

The distance of PS

$d = PS = \sqrt{(0-0)^{2} +(-3-4)^{2} } = \sqrt{49} =7$

Step(ii):-

Perimeter of the polygon

= sum of all sides of polygon

p = a+ b+ c+ d

p = 5+7+5+7

p = 24

Final answer:-

Perimeter of the polygon p = 24

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3 years ago