Unit 2 Practice

Front

What is the conversion factor from centimeters to inches?

Back

1 inch = 2.54 cm.

Front

How do you convert centimeters to inches?

Back

To convert cm to inches, divide the number of centimeters by 2.54.

Front

If a bottle contains 24 ounces, how many grams does it contain?

Back

To convert ounces to grams, multiply the number of ounces by 28.35 (since 1 ounce = 28.35 grams).

Front

What is the ratio of yellow marbles to blue marbles if there are 44 total marbles and the ratio is 4:7?

Back

The total parts in the ratio is 4 + 7 = 11. Each part is 44 / 11 = 4. Blue marbles = 7 parts = 7 * 4 = 28.

Front

How do you calculate the price per item?

Back

Price per item = Total price / Number of items.

Front

What is the best deal when comparing prices?

Back

The best deal is the option with the lowest price per item.

Front

If Dana bought 4 notebooks for $15.80, what is the price per notebook?

Back

Price per notebook = $15.80 / 4 = $3.95.

Front

If Sarah bought 6 notebooks for $21.60, what is the price per notebook?

Back

Price per notebook = $21.60 / 6 = $3.60.

Front

How do you determine which purchase is a better deal?

Back

Compare the price per item for each purchase; the lower price indicates a better deal.

Front

What is the total number of parts in the ratio 4:7?

Back

Total parts = 4 + 7 = 11.