Eureka Mid-Module 1 Review

Front

What is a ratio?

Back

A ratio is a relationship between two numbers that shows how many times the first number contains the second. For example, a ratio of 5:2 means for every 5 of the first item, there are 2 of the second.

Front

How do you find the total number of items recycled when given a ratio?

Back

To find the total, first determine the total parts in the ratio. Then, use the known quantity to find the value of one part and multiply by the total parts.

Front

If Jordan recycles 5 cans for every 7 cans Ellen recycles, how many cans did Ellen recycle if Jordan recycled 35 cans?

Back

Ellen recycled 49 cans. (35 cans / 5 parts = 7 cans per part; 7 parts * 7 = 49 cans). Total recycled = 35 + 49 = 84 cans.

Front

What is a consistent ratio?

Back

A consistent ratio means that the relationship between two quantities remains the same throughout a situation. For example, if Alex sees 6 sea turtles for every 24 jellyfish, this ratio (1:4) stays the same.

Front

How do you calculate the cost of multiple items?

Back

To calculate the cost of multiple items, multiply the cost of one item by the number of items. For example, if one bottle costs $2.50, then 10 bottles cost $25 (2.50 * 10 = 25).

Front

What is the formula for finding the amount of one color of paint needed based on a ratio?

Back

If the ratio of red to yellow paint is 6:5, for every 6 ounces of red, you need 5 ounces of yellow. To find yellow needed, use the formula: (amount of red / 6) * 5.

Front

If Garson completes 4 pull-ups for every 7 sit-ups, what is the ratio of pull-ups to sit-ups?

Back

The ratio of pull-ups to sit-ups is 4:7. If he completed 28 sit-ups, he would have completed 16 pull-ups (4/7 = x/28).

Front

What does it mean to simplify a ratio?

Back

Simplifying a ratio means reducing it to its smallest whole number form. For example, the ratio 8:12 can be simplified to 2:3.

Front

How can you represent a ratio in a table?

Back

You can represent a ratio in a table by listing the quantities in columns. For example, for the ratio of red to yellow paint, one column can show ounces of red and the other can show ounces of yellow.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions. For example, a ratio of 3:4 can be written as the fraction 3/4.