Middle school math on the subway 8 out of 11 people are carrying a brief case. based on this information, if there are 700 people on the subway, then about how many do not have a bridefcase

If 8 out of 11 people carry a briefcase, then 3 out of 11 will not carry a briefcase.

You will use proportional reasoning to solve for the number of people out of 33 that do not carry a briefcase.

not carrying a briefcase   3      x
total number of people    11 = 700

Use cross products to solve for x.

3 x 700 = 11x
2100 = 11x
11        11
x = 191 people

There are approximately 191 people not carrying briefcases.

Well, Alexa bought 32 apples, and ALL of those apples together costed $4.16 . You need to find what 1 apple would cost. All you really need to do is divide and check. 7.69

4.16/ 32= 0.13

This is the answer. Each apple costs $0.13 . To check your work and make sure you did the division right, you just multiply 0.13 by 32.

0.13 x 32= 4.16

You know that this is the correct answer because $4.16 was how much the original cost was. 

Therefore, 1 apple is $0.13 .