Proportions Proportions
What the Percent
Shopping Spree
That's Interesting
Lets Solve a Problem
100
Solve this proportion
5/6=x/18
What is 15?
100
This number is 25% of 48.
What is 12?
100
Walter bought a pair of shoes at a 40% discount sale that are originally $140. This is the cost after the discount.
What is $84?
100
This is the formula used to solve simple interest problems.
What is i=Prt
100
This is the equation solved for x.
-2x+11y=14
What is
x=(11y-14)/2
200
Solve this proportion
(-1)/(x-7)=(5)/(x-1)
What is 6?
200
200% of this number is 74.
What is 37?
200
A supermarket bought steaks for $8 but wants to make a 65% profit. This is the price the steaks should be sold for.
What is $13.20?
200
This is the amount invested at 8% annual interest for 3 years need to earn 480.
What is $2000?
200
The length of a rectangle is three times the width. These are the dimensions of the rectangle if the perimeter is 112 inches.
What is 14 x 42 inches?
300
If the ratio of the length of a rectangle to its width is 3:4, and the length is 42 inches. This is the width.
What is 56 inches?
300
7.2 is this percent of 16.
What is 45?
300
WITHOUT A CALCULATOR...
Solve this equation
0.07x+0.08(x+600)=78
What is 200?
300
This is how much interest is due on a 2-year student loan when $3500 is borrowed at a 5.25% annual interest rate.
What is $367.50?
300
This is how long will it take $4000 to double itself if it is invested at 8% simple interest.
What is 12.5 years?
400
A board is cut into two pieces whose lengths are in the ratio of 2 to 5. This is the lengths of the two pieces.
What is 8 ft and 20 ft?
400
187.5% of this number is 90.
What is 48?
400
Bryon bought a computer at a 30% discount sale for $105. What was the original cost of the computer.
What is $150?
400
Nancy invested a total of $1100. He invested part of it at 5% interest and the rest at 7% interest. This is how much he invested at each rate if his total interest amount was $67.
What is $500 at 5% and $600 at 7%?
400
Lou invested a certain amount of money at 3% interest, and he invested more than that amount at 5%. His total yearly interest was $157.50. This is how much he invested at each rate.
What is $1500 at 3% and $2250 at 5%
500
An investment of $500 earns $45 in a year. At the same rate, this is the additional money that must be invested to raise the earnings to $72 per year.
What is $300?
500
This is the proportion formula used to solve percents.
What is
(is)/(of)=%/100
500
A retailer but an item for $40 and resells if for $50 and claims that she is making a 20% profit. Is her claim correct.
Yes!
500
One month a credit card company charged $24.38 in interest on a balance of $1875. This is the annual interest rate the credit card company is charging.
What is 15.6%?
500
Define a variable and label a triangle to help solve the following problem.
The perimeter of a given triangle is 46 centimeters. The second side of a triangle is 1 centimeter longer than three times the first side. The third side is 2 centimeters longer than the second side.
