Question

@surjithayer @mary.rojas

Answer 1

Wendy is comparing two checking accounts. One has a monthly fee of $9 and a per-check fee of $0.50, and the other has a monthly fee of $5 and a per-check fee of $0.55. What is the minimum number of checks Wendy needs to write for the first bank to be a better option?

A. 71
B. 61
C. 81
D. 51

Answer 2

Let no. be x
then 9+0.50x<5+0.55x
solve it

Answer 3

81

Answer 4

@surjithayer

Answer 5

9-5<0.55x-0.50x
4<0.05x
\[4<\frac{ 5x }{100 },4<\frac{ x }{ 20 }\]
x>4*20
or x>80
minimum value of x=81

Answer 6

you are correct.well done.