4 years ago

2/3(3x-15y)+(9y-11x)

Mathematics

1 answer:

Natasha_Volkova [10]4 years ago

6 0

$\frac{2}{3}(3x-15y)+(9-11x)=\\\\2x-10y+9-11x=\\\\-9x-10y+9\\\\Answer\ is\ -9x-10y+9$

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You rent 2 DVDs and 1 video game for $12. The following week, your friend rents 4 DVDs and two video games for $24. Which of the

oksian1 [2.3K]

There are inifinite solutions because they are the same equation

2D + 1G = 12

and

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2D + 1G = 12 is the same as 2D + 1G = 12

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3 years ago

Which inequality will have a dashed boundary line with a shaded area above its graph? 7x − y ≤ 3 x − y ≤ 4 2x − 9y > 2 4x + 7

alexdok [17]

Above the graph

look at them

7x-y <span><</span>3
x-y<span><</span>4
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4x+7y>3

dashed boundary line means it does't include htat means taat the symbol is < or >

cross out first 2

one way is to graph the lines as equations and shade accordingly

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y<2/9x+2/9
shade on bottom

4x+7y>3
y>-7/4x+3/9
shade on top

aswer is 4x+7y>3

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4 years ago

Make f the subject of the formula c=<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%28f-32%29%7D%7B9%7D" id="TexFormula1" title="\

lara31 [8.8K]

Answer:

$f=\frac{9c}{5}+32$