12 because db/ad = 3 and ab = 8
thus de+(de/3) is the answer
12 <- answer
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Answer:
x = 10
Step-by-step explanation:
The marked sides are proportional, so we have ...
x/8 = (x +5)/12
3x = 2(x +5) . . . . . multiply by 24 to clear fractions
3x = 2x + 10 . . . . . eliminate parentheses
x = 10 . . . . . . . . . . subtract 2x
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<em>Alternate solution</em>
We observe that the difference between the upper segment lengths is ...
(x +5) -(x) = 5
and the difference between the lower segment lengths is ...
12 -8 = 4
This means the upper segment lengths are 5/4 times as long as the lower segments. Then ...
x = (5/4)(8) = 10
Answer:3x+2y=36
Step-by-step explanation:
Answer:
y=4x+4
Step-by-step explanation:
slope m is rise over run and b is where the line crosses the y axis.
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