Question

In this discussion, you will need to read the problem and determine if there was an error in the math. If there is an error, you will need to explain what was incorrect and show what the correct math is. If there is no error in the math, then you will simply state that there is no error and explain why.

Cathy is purchasing a DVD player and a TV at the local electronic store. The DVD player costs $49.36, and the TV costs $705.20. Cathy wants to pay for them in 12 equal payments. She says that her monthly cost is $73.88. Is Cathy correct? If not, what is her error?

Answer 1

Explanation:

Given that the cost of DVD is $49.36

and the cost of TV is $705.20

the total cost of the two appliances is $754.56

if Cathy wishes to pay for 12 equal months then the monthly pay would be

754.56/12= $62.88

Based on the information given by the question $73.88 is not her monthly pay, seeing that she is not paying any added amount to the cost of the apliances at a percentage

Error can be calculated as = (approximate-exact)/exact*100

= (73.88-62.88)/62.88*100

=11/62.88*100

=0.1749*100

Error =17.49%