Maria fay bought four dunlop tires at a local goodyear store. the salesperson told her that her mileage would increase by 4%. before this purchase, maria was getting 22 mpg. what should her mileage be with the new tires? (round to the nearest hundredth.)

22.88 mpg

Step-by-step explanation:

An increase of 4% can be represented as (100% + 4%). Think of it as you're getting 100% and an additional 4%.

Now multiple your original mileage by the increase:

22(100% + 4%)

=22(1.00 + .04)

=22(1.04)

=22.88

b

2

−

b

b

3

+

7

b

2

+

14

b

+

6

%

−

3

b

3

+

7

b

2

+

14

b

+

6

%

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: