Unit 3a

Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price decreased by 20%. What is the price of oranges this week?

• $2.10

• $1.40

• $1.55

• $0.35

This year, a herd of bison had a 10% decrease in population. If there are 540 bison in the herd this year, how many bison were there last year?

• 480

• 530

• 486

• 600

The number of miles driven this month was a 30% decrease of the number of miles driven last month.

Choose an equation that matches the situation.

• y= 0.7x

• y= 0.3x

• y= 1.3x

• y = 1.7x

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%
• 25%
• 30%
• 20%

-8x < 48

• x < -6
• x > -6
• x < 6
• x > 6

-3y + 2 > 11

• y < -3
• y > -3
• y < 3
• y > 3

Find the percent increase or decrease:

From 24 teachers to 30 teachers.

• 25% decrease

• 25% increase

• 20% decrease

• 20% increase

On her way to visit her parents, Jennifer drives 265 miles in 5 hours. What is her average rate of speed in miles per hour?

• 0.02 mph

• 132.5 mph

• 1,325 mph

• 53 mph

An above-ground swimming pool is leaking. After 1/2 hour the pool has leaked 7/8 of a gallon of water. How many gallons of water per hour is the swimming pool leaking?

• 0.44gal/h

• 2.5gal/h

• 1.75gal/h

• 0.57gal/h

After 3/4 of a minute a sloth has moved just 3/8 of a foot. What is the sloth’s speed in feet per minute?

• 1/2 ft/min

• 2 ft/min

• 9/32 ft/min

• 0.23 ft/min