Practice Flashcards: SAT Math — ratios, rates, units and scale | Zestly

Question 1

Proportion setup

Accepted Answer

A proportion is an equation stating that two ratios are equal, such as $a/b = c/d$.

Question 2

Unit rate calculation

Accepted Answer

Divide the total quantity by the number of units to find the value per single unit.

Question 3

When to multiply by conversion factor

Accepted Answer

Multiply when converting from a larger unit to a smaller unit, such as metres to centimetres.

Question 4

When to divide by conversion factor

Question 5

Converting a speed rate

Question 6

Comparing unit rates

Question 7

Scale factor

Question 8

Rounding up in context

Question 9

Rounding down in context

Question 10

Cross-multiplication

Question 11

Unit cancellation

Question 12

Constant rate