Question

Use the formula d=(r-c)t to find c if d=9,r=4, and t=3

Answer 1

d= (r-c)t

Explanation:

First we make the substitution, instead of d we will write nr 9, instead of r is nr 4 and instead of t is nr 3, so:

9= (4-c)3

9= 4 - c×3

9+4= c×3

13= c×3

C= 13/3

C= 4.3