IA2 Questions

​Interim Assessment #2:
Calculator Active

By Rosemary Colon

Finding the unit rate

Reminder on how to find the unit rate.....

First, find what two quantities are being addressed in the problem.
Example: miles and hour; price and pounds; apples to oranges
Second, set up either a proportion or a ratio (a fraction)
Example: 45 miles for every 3 hours--> 45miles/3hours
Third, you need to divide so the denominator is a 1
Example: 45 miles/3hours=> 15 miles/hour

Multiple Choice

If Sam has ¾ pint of cleaner left that can clean ⅔ of her boat, how many pints are needed to clean an entire boat? (Q2-2)

• 6/12 pint

• 8/9 pint

• 1 1/8 pint

• 2 pints

Solving problems w/ unit rates

Multiple Choice

An artist mixes 2/5 ounce of blue paint with 1/15 ounce of green paint. Using the same ratio, how many ounces of green paint should she mix with 3 ounces of blue paint? (Q2-6)

• 2/75 ounce

• 2/25 ounce

• 1/3 ounce

• 1/2 ounce

Comparing unit rates

Multiple Choice

Two friends run in different races as shown in the table.

Approximately, how many meters per second faster is one runner than the other? (Q2-9)

• Carlos is 0.01 meter per second faster than Elizabeth.

• Carlos is 0.70 meter per second faster than Elizabeth

• Elizabeth is 0.01 meter per second faster than Carlos.

• Elizabeth is 0.70 meter per second faster than Carlos

Multiple Choice

For an experiment, a scientist needs 1/2 cup baking soda for 4/5 liter of water. Using this ratio, how much baking soda is needed for one liter of water?

• 4/10 cup

• 5/8 cup

• 8/5 cup

• 10/4 cup

Multiple Choice

Two circles are placed in a rectangle. Each circle has a circumference of 62.8 cm. The edges of the circles touch the rectangle.  

What is the approximate length, in centimeters, of side x? (Use 3.14 for π.)

• 10cm

• 20cm

• 30cm

• 40cm