tax
Mix of Increase and Decrease
Percent Increase
Percent Decrease
MUST SELECT BEFORE CLASS ENDS: What's the Equation?
100

Find the amount of tax Joe will pay for a $15 shirt with 6% tax.

$0.90

100

How much is the tip for a $55 bill with 20% tip?

$11

100

Original price $0.50 New price $0.65

30%

100
Original weight 180lb New weight 162lb
 10%
200

Find the amount of tax Sarah will spend on a sweater that costs $27 with a 7% tax.

$28.89

200

How much is the tip for a $15 lunch with 15% tip?

$2.25

200
Original weight 110lb New weight 132lb
20%
200

The original price of a gold bracelet is $325. The sale price is $260. What is the percent of decrease?

 20%

300

This is the final price for an item costing $85.50 with a 20% discount.

$68.40

300

You own a jewelry store. You increase the price of jewelry by 70%. The store's cost for a 1 carat diamond ring is $800. What is the selling price of the ring?

1.70 * 800 = $1360

OR 

0.70 *800 = 560 AND then + 800 = $1360

300
Original amount $16 New amount $28
75%
300
Original enrollment 360 New enrollment 342
 5%
300

Jenny's rent increased by 10% this year. Let the variable "x" represent her rent last year and "y" represent her rent this year. Write an equation that shows how much she will pay with the increase.

x * 1.10 = y 

OR    x * 0.10 + x = y

OR    x * 0.10 + 1x = y

400

A store pays $120 for a bicycle. The store has a 65% markup policy. How much would you have to pay for the bicycle?

$198
400

Adding cheese to a McDonald's Quarter Pounder increases the calorie count from 420 to 510. What is the percent of change? NEAREST WHOLE PERCENT!

21.4%

400

Find the percent of decrease? if the original population was 800 and the new population is 716? NEAREST WHOLE PERCENT!

10.5% = 11%

400

Jenny's rent decreased by 10.5% this year. Let the variable "x" represent her rent last year and "y" represent her rent this year. Write an equation that shows how much she will pay with the decrease.

x (last year) * 0.895 = y 

OR    x  -  x * 0.105 = y

OR    1x  -  x * 0.105 = y

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