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tester [92]
3 years ago
7

PLEASE HELPPP

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0


(x + a)/(ax) = b/x
a= 2
b = 5
(x + 2) /(2x) = 5/x
cross multiply
x * (x+2) = (2x)*5
x^2 + 2x = 10x
x^2 - 8x = 0
x ( x -8) = 0
We get two solutions
x = 0, 8
the solution 0 is extraneous
the solution 8 is valid.

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Given

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To proof

gas prices now = $3.75

let the gas price 6 month ago = x

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First write 10% in simpler form

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vova2212 [387]

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