7th grade Ratios/Proportions Flashcards
How do you find unit rate?
You find unit rate by dividing
What are 2 ways to make equivalent ratios?
To make equivalent ratios you multiply or divide the top and bottom by the same number
How do you know if 2 ratios are proportionate?
You know if 2 ratios are proportionate by dividing down or cross multiplying
What do you call 2 equivalent ratios?
You call 2 equivalent ratios proportions.
What are the 2 steps to solving a proportion?
The 2 steps to solving a proportion are cross multiplying and then dividing.
The angles in similar figures are…
The angles in similar figures are congruent or equal.
How do you solve for a missing side in similar figures?
You solve for a missing side in similar figures by setting up a proportion
The sides in similar figures are…
The sides in similar figures are proportionate.
How do you know if a
table is proportionate?
You know if a table is proportionate if you divide y and x and values are the same
How do you know if a graphed line is proportionate?
You know if a graphed line is proportionate if it goes through (0, 0) and is straight
Another word for constant of proportionality is what?
Another word for constant of proportionality is unit rate
What do you use to solve scale, similar figures and map scale problems?
SET UP A PROPORTION!!!
How do you know if an equation is proportionate?
it is in the form y = 4x, there is no plus or minus on the end
