scale factor
If a rectangle is enlarged by a scale factor of 2, and its original length was 5 cm, what is the new length?
10 cm
If a sweater originally priced at $50 is marked down by 20%, what is the sale price?
$40
What is 20% of 150?
30
Convert 0.75 to a fraction.
3/4
If 5 apples cost $10, what is the constant of proportionality (cost per apple)?
$2 per apple
A triangle has sides of 3 cm, 4 cm, and 5 cm. If the triangle is reduced by a scale factor of 0.5, what is the new side length of the longest side?
2.5 cm
A store marks up the price of a toy by 30%. If the toy originally cost $20, what is the new price?
$26
If you scored 45 out of 60 on a test, what percentage did you get?
75%
What is 0.45 as a percentage?
45%
A recipe requires 3 cups of flour for every 2 cups of sugar. What is the constant of proportionality of flour to sugar?
1.5 cups of flour per cup of sugar
A square has a side length of 8 cm. If the scale factor is 3, what is the perimeter of the new square?
96 cm
An item is marked down by 15%, and its sale price is $34. What was the original price?
$40
A shirt is priced at $40. During a sale, it is marked down by 25%. What is the discount amount?
$10
onvert the fraction 1/2 to a decimal.
0.5
If a car travels 180 miles in 3 hours, what is the constant of proportionality (speed in miles per hour)?
60 miles per hour
The scale factor between two similar shapes is 1.5. If the smaller shape has an area of 16 square units, what is the area of the larger shape?
36 square units
A bike originally costs $200. During a sale, the price is marked down by 25%. How much money do you save?
$50
If a population of 2000 increases by 10%, what is the new population?
2200
What is 0.8 as a fraction in simplest form?
4/5
In a proportional relationship, y = 7x. What is the constant of proportionality?
7
An object is scaled down with a scale factor of 0.25. If the original object's width is 12 inches, what is the width of the scaled-down object?
3 inches
A jacket is on sale for $45 after a 10% markdown. What was the original price of the jacket?
$50
A car’s value depreciates by 15% each year. If the car is originally worth $20,000, what is its value after one year?
$17,000
Express 0.25 as a percentage.
25%
A machine produces 24 widgets in 6 minutes. What is the constant of proportionality (widgets per minute)?
4 widgets per minute