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3 years ago

How do you do the equation -8(0.5y - 3

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

3 0

Answer:

-4y+24

Step-by-step explanation:

You multiply -8 by each figure in the parenthesis.

So, -8(0.5y) and -8(-3) which is -4y+24 .

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What is x given ABC~DBE.<br> Show your work

alexandr1967 [171]

x = 37.5 (or) $\frac{75}{2}$

Solution:

Given $\triangle A B C \sim \triangle D B E$

AC = 50, DE = 30, EC = 25, BE = x, BC = 25 + x

To find the value of x:

Property of similar triangles:

If two triangles are similar then the corresponding angles are congruent and the corresponding sides are in proportion.

$$\frac{BE}{BC} =\frac{DE}{AC}$

$$\frac{x}{25+x} =\frac{30}{50}$

Do cross multiplication, we get

$50x=30(25+x)$

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Subtract 30x from both sides of the equation.

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Divide by 20 on both sides of the equation, we get

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Hence the value of x is 37.5 or $\frac{75}{2}$ .

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Answer:

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Step-by-step explanation:

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