Using a graph, table of values, and/or equations solve the following problem. The perimeter of a rectangle is 40cm. The length is 5 less than double the width. What is the width?

Round and write your answer to the tenths place value. Do not include units

8.3

Step-by-step explanation:

2(l+w) = 40

l+w = 20

l = 2w-5

2w-5+w = 20

3w = 25

w = 25/3 = 8.3

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: