A person owns two shops. This year the telephone bill for the first shop was $580 less than three times the telephone bill for the second shop. The total telephone expense for both shops was 52360 What was the cost of each shop's telephone service for the year?

Telephone bill first year for the first shop is?
And the second shop is?

Step-by-step explanation:

x = first shop

y = second shop

This year the telephone bill for the first shop was $630 less then three times the telephone bill for the second shop.

⇒ x = 3y - 630

The total telephone expense for both shops was $2446.

⇒ x + y = 2446

Solve by substitution -- the first equation into the second:

x + y = 2446 ⇒ (3y - 630) + y = 2446 ⇒ 4y = 3076 ⇒ y = $769

Substitute the value of y back into either of the original two equations to solve for x:

x = 3y - 630 ⇒ x = 3(769) - 630 = $1,677

x = $1,677

y = $769

4 + 5 7/9= 9 7/9

step-by-step explanation:

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.