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4 September, 01:28

Jahmal has p pairs of shoes. Kyle has one less than five times as many pairs of shoes as Jahmal. What expression represents the total number of shoes owned by both boys?

6p - 1

5p - 1

5p

5p + 1

The price of gasoline on January 1 is g. The price of gasoline rose 15% above the January 1 price. Which expression represents the new price of gasoline in terms of s?

15s

1.15s

85s

.85s

The state sales tax is 9 percent. Denise buys 7 packages of markers, with a cost of m per box. What is the total cost of the markers, including tax?

7m

7.09m

7.63m

7m +.09

A waitress makes $2.15 per hour, plus tips. She estimates that her tips for a shift will total 20% of the total of her customers' receipts, r. If she works a 10 hour shift, which expression represents her expected pay for that shift?

$21.50 +.2r

$2.15 +.2r

$2.35r

$23.50r

+5
Answers (1)
  1. 4 September, 01:50
    0
    Problem 1

    Jahmal has p pairs of shoes.: p

    Kyle has one less than five times as many pairs of shoes as Jahmal.: 5p - 1

    Total: p + 5p - 1 = 6p - 1

    Answer: 6p - 1

    Problem 2

    The problem gives the original price as g. there is no s mentioned in the problem, so I don't see how you can express the higher price in terms of s. Of course, it could be that the original price is s, not g, so then just replace g with s in my answer.

    The new price is g plus 15% of g.

    g + 15% of g =

    = g + 0.15g

    = 1.15g

    Answer: 1.15g

    Problem 3

    One package of markers costs m. 7 packages of markers cost 7m. Now you need to add 9% of 7m to 7m. If you consider 7m to be 100%, if you add 9% to 100%, you get 109%, so you need to express 109% of 7m. To find a percent of a number, multiply the percent by the number. To find 109% of 7m, multiply 109% by 7m.

    109% * 7m = 1.09 * 7m = 7.63m

    Answer: 7.63m

    Problem 4

    She earns $2.15 per hour and works 10 hours.

    $2.15/hour * 10 hours = $21.50

    From her salary, she earns $21.50 for the 10-hour shift.

    Her customer receipts totaled r, and she earns 20% of r in addition to her salary. 20% of r = 0.2r. She earns $21.50 + 0.2r

    Answer: $21.50 + 0.2r
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