Solve this problem : 2x- 3 (y-2x) + (-5) (-2y)

2 answers:

7 0

2x - 3(y - 2x) + (-5)(-2y)

Simplify everything.

2x - 3y + 6x + 10y

Add like terms.

(2x + 6x) + 10y

8x + 10y

~Hope I helped!~

liq [111]3 years ago

4 0

2x - 3(y - 2x) + (-5)(-2y)

you multiply -3(y - 2x) first and then (-5)(-2y)

2x - 3y + 6x + 10y

Combine like terms

2x + 6x - 3y + 10y
8x + 7y

8x + 7y is your answer

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The height of the Empire State Building is 1250 feet tall. Your friend, who is 75 inches tall, is standing nearby and casts a sh

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$\frac{Actual\text{ height of the friend}}{\text{Length of the friend's shadow}}=\text{ }\frac{Height\text{ of the building}}{\text{Length of the building's shadow}}$ $\begin{gathered} \frac{75}{33}=\text{ }\frac{1250}{\text{Length of the building's shadow}} \\ 2.27\text{ = }\frac{1250}{\text{Length of the building's shadow}} \\ \text{Length of the building's shadow = }\frac{1250}{2.27} \\ \text{Length of the building's shadow = }550.66\text{ f}et \end{gathered}$