Question

Please help is for today!

Answer 1

Answer:

Given :

Cost of onsite repair = 3 times cost of at store

cost of mai services = cost of at store -10

On-site work completed last week = 15

At store work completed = 40

mail work completed = 5

Let's Assume :

The cost of at store = x

the cost of in-site = 3x

the cost of mail service = x-10

Solution :

Part 1] :

See the "let's Assume" part

The cost of at store = x

the cost of in-site = 3x

the cost of mail service = x-10

Part 2 ]

The equation that can be formed is :

15(3x)+40(x)+5(x-10) = 2650 ,

or, 45x+40x+5x-50 = 2650

or, 90x = 2700

Part 3]

To determine the cost of on-site work, we will solve the equation formed in "Part 2"

So, 90x = 2700

or, 9x = 270

or, x = 270/9

or, x = 30

So,

The cost of on site repair = ₹90

The cost of at store = 30

The cost of by mail service = 20

Hope it helped Freind !

Step-by-step explanation: