Question

Estimate an answer to the problem. An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: 13-inch set, $147.99; 19-inch set, $208.95; 21-inch set, $231.99; 27-inch set, $289.97; 50-inch set, $519.97. Estimate the total cost of 9 13-inch sets.

Answer 1

We have that the 13 inch set costs:

`147.99`

which can be rounded up:

`147.99\approx148\approx150`

then, for 9 of these sets we get:

`9\cdot150=1350`

which is close to the real price:

`9\cdot147.99=1331.91`