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Suppose P varies directly with d , and p=7 when d=3. What is the value of d when p=28? A. 140/3 B. 12 C. 16 D. 4/3
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Suppose P varies directly with d , and p=7 when d=3.

What is the value of d when p=28?

A. 140/3
B. 12
C. 16
D. 4/3

User Danyal Sandeelo
by
7.0k points

1 Answer

3 votes
p vaires directly with d means
p=kd
7=k3
divide by 3
7/3=k

28=(7/3)d
times 3/7 both sides
84/7=d
12=d

B
User Nico Shultz
by
8.6k points
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