teagan4christ teagan4christ

Today at 5:27 PM
Mathematics

Answered

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

Answer :

apologiabiology apologiabiology

Today at 5:33 PM

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

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