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tiffanydowell13
23.03.2020 •
Mathematics
Which value of n makes this equation true
A.
n = -16
B.
n = -2
C.
n = 2
D.
n = 16
Solved
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Ответ:
A n=-16
Step-by-step explanation:
(3n+3)/5 = (5n-1)/9
Using cross products
9* (3n+3) = 5(5n-1)
Distribute
27n+27 =25n-5
Subtract 25n from each side
27n-25n +27 = 25n-25n -5
2n +27 = -5
Subtract 27 from each side
2n +27-27 = -5-27
2n = -32
Divide each side by 2
2n/2 = -32/2
n = -16
Ответ:
$9.89
step-by-step explanation:
9.90 = p x .06 x .25 (3/12 changed to a decimal)
9.90 = p x 0.015
9.90 - 0.015 = p
9.89 = p