Unit 3 Review - Smith

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the equation for a proportional relationship in the form y=kx?
Back
The equation for a proportional relationship is y=kx, where k is the constant of proportionality.
2.
FLASHCARD QUESTION
Front
How do you determine the better buy between two products?
Back
To determine the better buy, calculate the unit price for each product and compare them. The product with the lower unit price is the better buy.
3.
FLASHCARD QUESTION
Front
What is a non-proportional relationship?
Back
A non-proportional relationship is one where the ratio between two quantities is not constant.
4.
FLASHCARD QUESTION
Front
If hair grows at a rate of 2.5 cm every 2 months, how long will it take to grow 22.5 cm?
Back
It will take 18 months to grow 22.5 cm of hair.
5.
FLASHCARD QUESTION
Front
How do you scale a recipe for a different number of servings?
Back
To scale a recipe, use the ratio of the desired servings to the original servings and multiply the ingredient amounts accordingly.
6.
FLASHCARD QUESTION
Front
What is the constant of proportionality in the equation y=8x?
Back
The constant of proportionality is 8.
7.
FLASHCARD QUESTION
Front
What is the unit price of an 8 pack of juice boxes that costs $4.79?
Back
The unit price is $0.59875 per juice box.
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