Question

Megan’s TV had a base price of $189 and the sales tax was 6.88%. Over the next four years, the TV consumed an average of $0.06 of electricity every day. It also needed repairs twice, costing $29 each time. After four years, Megan got a new TV. What was the lifetime cost of Megan’s TV? (Remember that one in every four years is a leap year.)

Answer 1

The solution would be like this for this specific problem:

189 x .0688 = 12.8 + 189 = 201.8
(4 x 360) x .06 = 86.4
(29 x 2) + 86.4 = 144.4
201.8 + 144.4 = $346.2

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Answer 2

lifetime cost of the Megans TV is $347 .66 .

Explanation:

As given

Megan’s TV had a base price of $189 and the sales tax was 6.88%.

6.88 % is written in the decimal form.

`= (6.88)/(100)`

= 0.0688

Sales tax price = 0.0688 × Base price

= 0.0688 × 189

= $ 13 (Approx)

As given

Over the next four years, the TV consumed an average of $0.06 of electricity every day.

As 1 year contains 365 days and a leap year contains 366 days .

Thus

Electricity consumed in four years = Average electricity × (3× Number of days in one years + Number of days in a leap year )

= 0.06 × ( 3 × 365 + 366)

= 0.06 × (1095 + 366)

= 0.06 × 1461

= 87.66

As given

It also needed repairs twice, costing $29 each time.

Repair cost = 2 × Cost of repair

= 2 × 29

= $58

Thus

Lifetime cost of the Megans TV = Base cost + Sales price cost + Electricity consumed in four years + Repair cost .

Putting all the values in the above

Lifetime cost of the Megans TV = $189 + $13 + $87.66 + $ 58

= $ 347.66

Therefore the lifetime cost of the Megans TV is $347 .66 .