Unit 3 Test Review 7.4d 7.4b 7.4e

Front

What is the conversion factor between fluid ounces and milliliters?

Back

1 fluid ounce is approximately 30 milliliters.

Front

If a fish makes 480 dives in 10 hours, how do you calculate the number of dives in a different time frame?

Back

To find the number of dives in a different time frame, use the rate of dives per hour. In this case, 480 dives / 10 hours = 48 dives per hour. Then multiply by the number of hours.

Front

What are the units of measurement for speed when a car is going 50 miles per hour?

Back

The units of measurement for speed are miles and hours.

Front

How do you determine the number of counselors needed for a different number of girls at a summer camp?

Back

Use the ratio of counselors to girls. If there are 80 girls and 12 counselors, the ratio is 12/80. To find the number of counselors for 100 girls, set up a proportion: (12/80) = (x/100) and solve for x.

Front

What is a ratio, and how is it used in the context of boys to girls in a classroom?

Back

A ratio is a comparison of two quantities. In the context of boys to girls, a ratio of 12:17 means for every 12 boys, there are 17 girls.

Front

How do you round a number to the nearest person when calculating expected students?

Back

To round to the nearest person, look at the decimal. If it's 0.5 or higher, round up; if it's less than 0.5, round down.

Front

What is the formula to convert fluid ounces to milliliters?

Back

Multiply the number of fluid ounces by 30 to get the equivalent in milliliters.

Front

How can you find the total number of dives a fish makes in a specific time period?

Back

Multiply the rate of dives per hour by the number of hours.

Front

What is the significance of understanding ratios in real-life applications?

Back

Understanding ratios helps in making comparisons and solving problems related to proportions in various contexts, such as cooking, budgeting, and resource allocation.

Front

How do you set up a proportion to solve for an unknown quantity?

Back

Set up a fraction that represents the known ratio and equate it to a fraction that represents the unknown ratio, then cross-multiply to solve.