
Applying Proportionality
Authored by Jennifer Fisher
Mathematics
7th Grade
7 covered
Used 4+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suppose you want to leave a 15% tip on a restaurant bill of $45. What is the amount of tip you should leave?
$60.00
$0.15
$6.75
$15.00
Answer explanation
15% is the same as 10%+5%
Tags
7.4.D
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If a store marks up all of its prices by 25% and the cost for an item is $16, what is the customer's cost?
Answer explanation
Markdown means less money, markup means more.
Tags
7.4.D
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
David purchases a vacuum that originally costs $259. What is the price of the vacuum with a 10% coupon?
Answer explanation
A coupon is a detachable part of a ticket or advertisement that entitles the holder to a discount.
Tags
7.4.D
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the formula for simple interest?
Answer explanation
Interest increases money in a savings account or on a loan.
Tags
7.13.E
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rick wants to buy a pair of shoes for $60. The sales tax in his state is 6%. What is the total price Rick will pay for the shoes, including sales tax?
Answer explanation
Sales tax is a percent of the selling price of a good or service that is added to the price. When calculating the total cost of a good or service that includes sales tax (x%), multiplying the list price by (1 + %x) is the same as adding the sales tax (x%) to the list price.
Tags
7.13.A
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If Triangle A is an equilateral triangle with side lengths of 4 units and it is reduced by 50% to create Triangle B, what are the side lengths of Triangle B?
Answer explanation
If you draw Triangle A and Triangle B, the bottom sides of the triangles are corresponding sides.
Tags
7.5.C
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A rectangle has a height of 20 inches and a width of 15 inches. Determine the width of a mathematically similar rectangle that has a height of 16 inches.
Answer explanation
Figures that are proportional in size, or that have proportional dimensions, are called similar figures.
Tags
7.5.C
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