4 years ago

Which expression is equivalent to 4(3x+5y+2z)+3(x-z)

Mathematics

1 answer:

Anni [7]4 years ago

4 0

A. 12x+20y+8z...it's a simple distributive property question :)

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diane charges $10 for a house call plus $35 an hour for electrical work. if she made $150 on one job,how many hours did she work

salantis [7]

The equation would be 35x +10 = 150
35x =140 (subtraction property)
x = 4
Answer: she worked for 4 hours

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3 years ago

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Veseljchak [2.6K]

7(y+2)=3
seven times the sum of a number (y) and 2
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Rasek [7]

Answer:

A 40

Step-by-step explanation:

We can find angle K

J + K + L = 180 The angles of a triangle add to 180

50 + K + 90 =180

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140-140 + K = 180-140

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3 years ago

Write each equation in standard form. identify A,B,C.

aleksley [76]

Write in y=ax²+bx+c form
solve for y

given
$\frac{x+5}{3}=-2y+4$
solve for y

easy
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times -1/2 to both sides
$\frac{x+5}{-6}+2=y$
$y=\frac{x+5}{-6}+2$
$y=\frac{-x}{6}-\frac{6}{5}+2$
2=10/5
$y=\frac{-1}{6}x-\frac{6}{5}+\frac{10}{5}$
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3 years ago

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Oduvanchick [21]

1 7/9 divided by 2/9 is 8 hunny hope it helps ^_^

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