Unit 3 Review

Samantha needs an average quiz score of 90 across five quizzes. Her first four scores were 88, 92, 85, and 95. What is the lowest score she can get on her fifth quiz to meet her goal?

Carlos wants to run an average of 20 miles per week. In the first four weeks, he ran 18, 22, 19, and 21 miles. How many miles must he run in the fifth week to meet his goal?

Lucas wants to limit his average daily screen time to 3 hours. Over the past six days, he spent 2.5, 3.2, 2.8, 3.5, 2.9, and 3.1 hours on screens. What is the maximum number of hours he can spend on the seventh day while staying within his goal?

The lengths of the sides of a triangle are three consecutive even integers. The perimeter of the triangle is 246 feet. Find the length of the SHORTEST and LONGEST side of the triangle.

• 78 ft and 80 ft

• 80 ft and 84 ft

• 82 ft and 84 ft

• 84 ft and 86 ft

Emma and Lucas each bought books at a bookstore. Emma bought 3 more than three fourths the number of books that Lucas bought. They bought 40 books combined. Which equation represents this scenario?

Kellie has only quarters and dimes in her coin jar. When she counted her money, she had $5.40 in total. If she had 3 times as many quarters as dimes, how many quarters did she have?

• 22 quarters

• 18 quarters

• 18 dimes

• 15 quarters

Jason's monthly electricity bill consists of a base fee and a usage fee. The electricity company charges a monthly base fee of $30, plus $0.12 per kilowatt-hour (kWh) used. Last month, Jason’s electricity bill was $90. How many kilowatt-hours did Jason use last month?

• 700 kWh

• 500 kWh

• 300 kWh

• 400 kWh

Jake has only nickels and pennies in his coin jar. When he counted his money, he had $2.52 in total. If he had 4 times as many nickels as pennies, how many nickels did he have?

• 44 nickels

• 51 nickels

• 12 nickels

• 48 nickels

• x(p - 3) = - 16

• x(p - 3) < 8

• x(p - 3) > -16

• x(p - 3) < -16