7U4 - FLASHCARD 1

Front

What is the cost of 10 pounds of hamburger if 3 pounds cost $6?

Back

$20

Front

What does it mean for a graph to be proportional?

Back

A proportional graph passes through the origin and has a constant ratio between x and y.

Front

If a shoe sales associate earned $300 in August and 8% more in September, how do you calculate her September earnings?

Back

September earnings = August earnings + (8% of August earnings) = $300 + ($300 * 0.08) = $324.

Front

In a percent decrease problem, what can be said about the new amount compared to the original amount?

Back

The new amount will always be less than 100% of the original amount.

Front

What is a non-proportional relationship in terms of equations?

Back

A non-proportional relationship does not pass through the origin and can be represented by an equation like y = x + 3.

Front

How do you find the percent increase from one value to another?

Back

Percent increase = ((new value - original value) / original value) * 100.

Front

What is the formula for calculating the total cost when buying multiple items?

Back

Total cost = (cost per item) * (number of items).

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio to each other.

Front

How do you determine if a graph represents a proportional relationship?

Back

Check if the graph passes through the origin and if the ratio of y to x is constant.

Front

What is the definition of percent decrease?

Back

Percent decrease is the reduction in value expressed as a percentage of the original value.