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Shtirlitz [24]
3 years ago
12

Need answers before 8pm!!

Mathematics
1 answer:
GaryK [48]3 years ago
8 0

We have similar triangles so

12/x = (12+78)/(x+13)

We can skip some algebra by doing the ratio on the pieces.  We'll show it works at the end.

12/x = 78/13

x = 12(13)/78 = 2

We check

12/2 = 6

(12+78)/(2+13) = 90/15 = 6, good

Answer: x=2

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30

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Joe is a car salesman. He earns 300 for every car he sells plus a 3 percent commission. IfJjoe sells 3 cars in one week for a to
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3 years ago
Which expression is equivalent to −1/4x+1/2?
Marat540 [252]
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3 0
3 years ago
Find the solution to the system of equations x + y = 9 and x - y = -1.
Galina-37 [17]

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x - y = - 1 → (2)

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6 0
2 years ago
Read 2 more answers
A = 10, b = 24, c = _____
Arlecino [84]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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