Answer:
c = 25y
Step-by-step explanation:
c = cost
The problem asked you to calculate the slope of the dilated polygon which is dilated by a scale factor of 3. So, the slope of BC is 5/2 or -5/-2 and the dilated polygon has a the same slope of the original polygon.
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a, b and e
a.
x + 5 = 8 ( subtract 5 from both sides )
x = 3
b
4x = 12 ( divide both sides by 4 )
x = 3
c
= 3 ( multiply both sides by 9 )
x = 27
d
x - 5 = 10 ( add 5 to both sides )
x = 15
e
= 3
note that
= x, hence
x = 3
7/8 minus1/4 minus 1/2
7/8 - 1/4 - 1/2 =
(1 × 7)/(1 × 8) - (2 × 1)/(2 × 4) - (4 × 1)/(4 × 2) =
7/8 - 2/8 - 4/8 =
(7 - 2 - 4)/8 =
1/8
the answer is 1/8