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viva [34]
3 years ago
8

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? A. 16.7 cents B. 0.8 cent C. 17.5 cents D. 8.3 cents
Mathematics
2 answers:
sergiy2304 [10]3 years ago
8 0

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Cost of 5 - pound box of detergent = $3.50

Cost of 15 - pound box of detergent = $10.00

Number of loads can wash 5-pound box of detergent = 20

Number of loads can wash 15-pound box of detergent = 20\times 3=60

For 60 loads to be washed in 15 pound box of detergent costs $10.00

For 60 loads to be washed in 5 pound box of detergent costs

3.50\times 3\\\\=\$10.50

So, total saving while using 15 pound box of detergent is given by

10.50-10.00\\\\=\$0.50

So, total saving per load would be

\dfrac{0.50}{60}=\$0.008=0.8\ cents

Hence, option 'B' is correct.

Llana [10]3 years ago
6 0

Answer. Option  B. 0.8 cents.


Solution:

With a 5-pound box of detergent will wash 20 loads of laundry, then with a 15-pound box (5*3) of detergent will wash 20*3=60 loads of laundry, and you would pay $10.00.

To wash 60 loads of laundry with 5-pound box, you would need three 5-pound box, and you would pay $3.50*3=$10.50.


Then you would save in total $10.50-$10.00=$0.50

And per load, you would save: $0.50/60=$0.008=0.008*100 cents=0.8 cents

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