MATHEMATICS
HIGH SCHOOL

A.

15

B.

16

C.

17

D.

18

Answer: 18, 17, 11, 18, 14, 14, 15, 18, 13, 12, 20, 17

Step One: Put them in numerical order.

11, 12, 13, 14, 14, 15, 17, 17, 18, 18, 18, 20

Step Two: Cross out one from each side until you are left with one or two in the center. (ones that are crossed out will be bolded for our purposes)

11, 12, 13, 14, 14, 15, 17, 17, 18, 18, 18, 20

Step Three: Since two numbers are left in the middle, the median is the number in the middle of the two.

Median = 16 (B)

Step One: Put them in numerical order.

11, 12, 13, 14, 14, 15, 17, 17, 18, 18, 18, 20

Step Two: Cross out one from each side until you are left with one or two in the center. (ones that are crossed out will be bolded for our purposes)

11, 12, 13, 14, 14, 15, 17, 17, 18, 18, 18, 20

Step Three: Since two numbers are left in the middle, the median is the number in the middle of the two.

Median = 16 (B)

MIDDLE SCHOOL

What is 1/10 divided by 9/10?

1/10 divided by 9/10

1/10 x 10/9

10/90 simplified to 1/9

1/10 x 10/9

10/90 simplified to 1/9

Answer:

1/10 divided by 9/10 is 1/9

Step-by-step explanation:

It is 1/9 because 1/10 divided by 9/10 is the same as using the reciprocal of 9/10 which then now you have 1/10 multiply by 10/9 and you have 10/90 which is simplified to 1/9.

Hope this helps. :)

MIDDLE SCHOOL

The Retread Tire Company recaps tires. The fixed annual cost of the recapping operation is $65,000. The variable cost of recapping a tire is $7.5. The company charges$25 to recap a tire. a. For an annual volume of 15, 000 tire, determine the total cost, total revenue, and profit. b. Determine the annual break-even volume for the Retread Tire Company operation.

Part a) Total Cost

Total Cost for recapping the tires is the sum of fixed cost and the variable cost. i.e.

The total cost is ( $65,000 fixed) + (15,000 x $7.5)

=$65,000+$112,500

=$177,500

Part b) Total Revenue

Revenue from 1 tire = $25

Total tires recapped = 15000

So, Total revenue = 15000 tires x $25/tire

Total Revenue =$375,000

Part c) Total Profit

Total Profit = Revenue - Cost

Using the above values, we get:

Profit = $375,000 - $177,500

Profit = $197,500

Part d) Break-even Point

Break-even point point occurs where the cost and the revenue of the company are equal. Let the break-even point occurs at x-tires. We can write:

For break-even point

Cost of recapping x tires = Revenue from x tires

65,000 + 7.5 x = 25x

65,000 = 17.5 x

x = 3714 tires

Thus, on recapping 3714 tires, the cost will be equal to the revenue generating 0 profit. This is the break-even point.

MIDDLE SCHOOL

How do you solve / figure 8 x 51

(Distributive property)

8(51)

=8(50+1)

=(8*50)+(8*1)

=(8*5*10)+(8*1)

=400+8

=408

=8(50+1)

=(8*50)+(8*1)

=(8*5*10)+(8*1)

=400+8

=408

MIDDLE SCHOOL

during their last game a football team lost a total of 12 yards on three consecutive plays .thet lost the same number of yards on each play. What was the change in your yardage on each play

4 yards each play, 12/3=4 (in case you need to show your work)

Answer:

1906

Step-by-step explanation: