Mild
A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. What is the new price?
120 x 0.15 =18
120 + 18 =138
A store advertises that customers can take 25% off the original price and then take an extra
10% off. Is this the same as a 35% off discount? Explain.
No. (32.50%)
100-25 = 75
75 x 0.10 =7.5
75-7.50 =67.50
An item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. Solve the problem with the discount applied before the sales tax.
50 x 0.20= 10
50-10= 40
40x0.08 =3.2
40+3.20=43.20
9 (-3) + (-3) / -3
-26
A shoe store has a markup rate of 75% and is selling a pair of shoes for $133. Find the price the store paid for the shoes.
selling price = original price x (1 + m)
133 = x (1 + 0.75)
x = 76
The sale price for a bicycle is $315.The original price was first discounted by
50% and then discounted an additional 10%. Find the original price of the bicycle.
0.90 (0.50x) = 315
0.45x = 315
x = 315/0.45 =700
At a dinner, the meal cost $22 and a sales tax of $1.87 was added to the bill. What is the tax rate (percent of tax charged on the meal) for this meal?
1.87/22 =0.085 = 8.5%
2 x (5 x 9 - 8^2) + 7
-31
A shoe store is selling a pair of shoes for $60 that has been discounted by 25%. What was the original selling price?
0.75x = 60
x = 60/0.75 = 80
A tennis supply store pays a wholesaler $90 for a tennis racquet and sells it for $144. What is the markup rate?
144 = 90 (1+m)
144/90 = 1 + m
1.6 = 1 + m
0.6 = m = 60%
An item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. What is the final price, including tax?
50 x 0.20= 10
50-10= 40
40x0.08 =3.2
40+3.20=43.20
((12/3)^2 - (18 / 3^2)) x (4 / 2)
28
At the amusement park, Laura paid $6.00 for a small cotton candy. Her older brother works at the park, and he told her they mark up the cotton candy by 300%. Laura does not think that is mathematically possible. Is it possible, and if so, what is the price of the cotton candy before the markup?
Yes. The selling price is 400% of the original price (OG 100% = 300%)
4x = 6
x = 6/4 =1.5
The cost of a New York Yankee baseball cap is $24.00. The local sporting goods store sells it for $30.00. Find the markup rate.
30 = 24 (1+m)
30/24 = 1 + m
1.25 = 1 + m
0.25 = m = 25%
At a dinner, the meal cost $22 and a sales tax of $1.87 was added to the bill. How much would the sales tax be on a $66 meal?
1.87/22 =0.085 = 8.5%
66 x 0.085 =5.61
((6 x 1.35) + (2 x 3.55) + 10.25) x 1.08
about 27.486