Question

An advertisement claims that a 5-pound box of detergent will wash 20 loads of laundry. A 5-pound box costs $3.50. A 15-pound box costs $10.00. About how much will you save per load if you buy the 15-pound box?

Answer 1

What are your answer choices?

Answer 2

@Narad

Answer 3

We must calculate the cost of one load if you buy the 5-pound box

The cost is \[c _{1}=3.5/20=0.175$ /load\]

If you buy the 15-pound box, the cost of one load is
\[c _{2}=10/60=0.167 $/load\]

The saving is
\[=c _{1}-c _{2}=0.175-0.167=0.008$/load\]

Answer 4

Thanks guys