Unit Test — Unit test Answers

Every seventh-grade student at Martin Middle School takes one world language class. One-tenth of the seventh-grade students take French. Eighteen seventh-grade students take French. Which equation represents s, the total number of seventh-grade students at the middle school?

Kendra bought a gallon of milk and of a pound of oranges. If the gallon of milk cost $3.60 and she spent a total of $4.35, which equation can be used to determine x, the cost of a pound of oranges?

Adler and Erika solved the same equation using the calculations below. Adler’s WorkErika’s WorkWhich statement is true about their work?

Holly drew the parallelogram below to represent the design of her new garden.She found that the area of the garden will be square feet by using the equation . If the height, h, of the parallelogram-shaped garden is feet, what is the base, b, in feet?

Emma read the statement “the quotient of six and a number, x, is the same as negative two times the difference of x and 4.5.” She translated it as shown below.What errors did Emma make? Select two options.

What is the solution for the equation?

Jade has $451.89 in her checking account. After 3 checks, each for the same amount, are deducted from her account, she has $358.92 left in her account. Assume she makes no other withdrawals or deposits. Which equations represent c, the amount of one check, in dollars? Select three options.

Which statement can be represented by the equation ?

Sadie is 3 years older than Kareem, and Kareem is twice as old as Nadra. The sum of their ages is 33.A student used the steps below to find each person’s age.Step 1Write an equation, letting x represent Kareem’s age:Step 2Solve the equation:Step 3Sadie is , Kareem is , and Nadra is .Which corrects the student’s first error?

A cycling race is 17 miles long. The cyclists will begin at point S and ride a number of laps around a neighborhood block. After the last lap, the cyclists will sprint 2.0 miles to the finish line. Using the equation , the race’s organizer determined the cyclists will need to ride 9 laps before the sprint to the finish. Which explains the error?

Perry spent $22.50 on material to make necklaces. He used all of the material and made 15 necklaces. How much should Perry charge for each necklace if he wants to make a profit of $60?

Katya cut part of the jump rope off to make it shorter. The new length is feet. The difference between the original length and the new length is foot. The equation can be used to represent this problem, where x is the original length of the rope. What was the original length of the rope?

Leo spent the same amount of time working on each of 5 different weight machines and then spent of an hour on the treadmill. If he spent a total of hours at the gym, which shows the correct equation and solution for x, the number of hours Leo spent at each of the weight machines?