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adelina 88 [10]
3 years ago
5

A person owns two shops. this year the telephone bill for the first job was $640 less than four times a telephone bill for the s

econd shop. The total telephone expense for both shops was $3720. what was the cost of each shops telephone service for the year?
Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer: F=bill for first shop=4S-$630; S=bill for second shop

.

F+S=$3265 Substitute for F

4S-$630+S=$3265

5S=$3895

S=$779 ANSWER 1: The bill for the second shop was $779

.

F=4S-$630

F=4($779)-$630

F=$3116-$630=$2486 ANSWER 2: The bill for the first shop was $2486.

.

CHECK:

F+S=$3265

$2486+$779=$3265

$3265=$3265

explanation:

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