Question

(Choose the correct answer.)
The interest that Julia earns on her investment is given by the equation I = 48t where t is the time in years that her money is invested. She makes a table to determine how much money she would earn for different values of t. If one of the values for t she selects is 5, what would be her corresponding entry for I?
A. 53
B. 240
C. 485
D. 9.6

Answer 1

substitute the given value in place of the unknown letter, either t or w, e.g.

if t=5, then I=48t becomes
I= 48 * 5 = 240

Answer 2

so the answer is 240....