Question

1. The school office is now selling neon mechanical pencils. If the office pays $10.80 for a dozen pencils, how much should be charged to make a profit of 75 cents each?
2. Several cases of 16-ounce bottles of water were purchased for $252.00. If one case costs $7.00, how many cases were purchased?
3. Okolona College ordered jerseys to sell at the homecoming game. The college paid $9.25 each for 225 jerseys. Each jersey was sold for $15.75. What was the percent of markup for each jersey? How much profit was made if all of the jerseys were sold?
4. A truck traveled 654 miles on a long distance run. If the truck averaged 55 mph, how many hours did it take to reach the truck's destination? (Round to the nearest hour)
5. Della Riley borrowed $2400 for 6 months to invest in a business venture. If she agreed to pay 8% interest annually, how much will she be repaying?
6. It takes Dan an average of 45 minutes each evening to do his chemistry homework. Dan calculates that he worked a total of 3 hours on chemistry last week. Assuming that Dan worked his average time per evening consistently, how many evenings did Dan work?
7. Jon's car averages 20 mpg in town and 28 mpg on the road. What is the percent of decrease between the two driving conditions?

Answer 1

Answers:

1)10.80/12 =0.90

0.90+0.75=1.65

2)252/7=36 units

3)cost price = $9.25*225

= $2081.25

Selling price = $15.75*225

= $3543.75

Profit = Selling price - cost price

Profit = $3543.75 - $2081.25

=$1462.50

5) FV = L*(1 + rt),

Where FV is the amount to repay;  L is the borrowed amount (the loan amount) and "r" is the annual interest as decimal; t is the time.

In your case  L = 2400 dollars;  r = 8% = 0.08 (as decimal) and t = 0.5 of a year (6 months).

Therefore,

   FV = 2400*(1 + 0.08*0.5) = 2496.

In 6 months, Della Rilley must repay $2496

4) 654miles/55mph=11 hours, 53 minutes, 27 seconds ANS: ap.12 hours

time = distance/speed

6) 60*3=180mins

180/45=4

Ans: 4 days

7) This is a decrease of 8

a decrease of 28.57% rounded to two decimals

Answer 2

1.) 10.80 % 12 = .90 + .75 = 1.65 • 19.80

2.) 36 cases of 16 ounce were purchased

3.) a profit of 1,462.50