Math Core

Unit 5 · Test

Unit 5 test: Equations and Inequalities

14 questions. Answer them all, then submit to see your score. Solutions unlock after you submit.

This test covers solving two-step equations, writing and solving equations for word problems, and solving and graphing two-step inequalities.

Question 1

Solve 5x−8=275x - 8 = 27 for xx.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 2

What is a good first step to solve m6+4=10\dfrac{m}{6} + 4 = 10?

Question 3

Solve −3n+10=1-3n + 10 = 1 for nn.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 4

Solve 2(y+7)=302(y + 7) = 30 for yy.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 5

Solve 35k−2=7\dfrac{3}{5}k - 2 = 7 for kk.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 6

Three times Lucas's age, minus 55, equals 3434. Which equation can you use to find his age, aa?

Question 7

A bowling alley charges $4 to rent shoes plus $5.50 per game. Kira spends $26 in all. How many games does she bowl?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 8

A rectangular playground has a perimeter of 6464 meters. Its length is 2020 meters. What is its width, in meters?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 9

A diver is at −60-60 feet. She rises 88 feet each minute. After how many minutes will she be at −12-12 feet?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 10

Solve 4x−1<154x - 1 < 15.

Enter an inequality, e.g. x >= 4, -2 < x <= 3, or x < 1 or x > 5

Question 11

Solve −2x+9≥3-2x + 9 \ge 3.

Enter an inequality, e.g. x >= 4, -2 < x <= 3, or x < 1 or x > 5

Question 12

Which inequality has the solutions shown on the number line?

−5−4−3−2−1012345
Question 13

Solve 7−x3>57 - \dfrac{x}{3} > 5.

Enter an inequality, e.g. x >= 4, -2 < x <= 3, or x < 1 or x > 5

Question 14

A phone plan costs $20 per month plus $0.15 for each text message. Sam wants his bill to be at most $35. What is the greatest number of texts he can send in a month?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.