3 years ago

The Distributive Property of 7 x 1,214

Mathematics

1 answer:

Nataly_w [17]3 years ago

7 0

(8,498)HOPE IT HELPS!

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A textbook store sold a combined total of 260 chemistry and physics textbooks in a week. The number of chemistry books sold was

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Let:

x = Chemistry textbooks sold

y = Physics textbooks sold

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$x+y=260$

The number of chemistry books sold was three times the number of physics textbooks sold, so:

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Let:

$\begin{gathered} x+y=260_{\text{ }}(1) \\ x=3y_{\text{ }}(2) \end{gathered}$

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10 months ago

3x + y = -2<br> x = 2 - y

andrezito [222]

Answer:

$y = 4 \\ x = - 2$

Step-by-step explanation:

$3(2 - y) + y = - 2 \\ 6 - 2y = - 2 \\ 2y = 8 \\ y = 4 \\ \\ x = 2 - 4 \\ x = - 2$

I hope that uesful for u :)

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