At a school party there are 40 cookies. The ratio of chocolate cookies to oatmeal cookies is shown in the tape diagram. The ratio shown in the diagram is 5 chocolate cookies to 3 oatmeal cookies. How many oatmeal cookies are there?

24

Step-by-step explanation:

the ratio is 40 cookies: ?? oatmeal cookies

5:3

5 times what will give us 40

well 40/5 is 8 so it is 8

whatever we do to one side we have to do to another s 3 x 8 is 24.

5:3 is equivalent to 40:24

There are 24 oatmeal cookies.

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: