Equations and Expressions Quiz

The weight of an object on the moon, m, is about ⅙ of the object’s weight on Earth, e. Which equation represents the approximate weight of an object on the moon in terms of the object’s weight on Earth?

• $m=\frac{1}{6}+e$

• $m\ =\ \frac{e}{6}$

• $m\ =\ 6\ +\ e$

• $m=6e$

Chakan worked at the warehouse after school. He earned $9.25 per hour stacking boxes. Which equation

correctly relates Chakan’s total earnings, d, to the number of hours he worked, h?

• $d=9.25h$

• $h=9.25d$

• $d=\frac{9.25}{h}$

• $h=\frac{9.25}{d}$

Zelma buys p pounds of bananas for 40 cents per pound. She pays the clerk with a twenty-dollar bill. The clerk subtracts the total cost of the bananas from the twenty-dollar bill to determine the amount of change to give Zelma. Which expression represents the amount of change Zelma should receive?

• $p-20$

• $20-40p$

• $20-0.40p$

• $0.40p-20$

Jason’s friend told him that he could earn $49 for handing out flyers at a local concert. Jason wants to calculate

the hourly rate. If he works a total of 3.5 hours, the equation 3.5x = 49 can be used to determine his hourly

rate. What would Jason’s hourly rate be, in dollars?

• $1.40

• $14.00

• $45.50

• $171.50

A shelf has four books on it. The weight in pounds, of each of the four books on the shelf is listed: 2.5, 3.2, 2.7, 2.3

Which inequality represents the weight, w, of any book chosen from the shelf?

• w < 2.4

• w > 2.4

• w > 3.2

• w < 3.3

A printer makes more than 3 copies of a book every hour. Which graph represents the number of books made in 4 hours?

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Which situation can be represented by the expression 1.2p?

• The total cost of an item that is p dollars more than $1.20

• The amount of change when $1.20 is used to pay for an item costing p dollars

• The number of square feet in each lot when 1.2 acres is partitioned into p equal sections

• The area of a rectangle with the side lengths 1.2 and p

Which pair of expressions below are equivalent?

• $0.25\left(400x+200y\right)$ and $5\left(20x+25y\right)$

• $10\left(10x+5y\right)$ and $5\left(20x+25y\right)$

• $0.25\left(400x+200y\right)$ and $10\left(10x+5y\right)$

• $5\left(2x+y\right)$ and $10\left(10x+5y\right)$

Which pair of expressions below are equivalent?

•  $3\left(5x-6\right)$ and $15x-18$ 

•  $7\left(2x\right)$  and $9x$ 

•  $x+x+x+x+x$  and $x^5$ 

•  $3x+5x$  and  $15x$ 

Which expression is equivalent to the expression below?
 $k+k+k+k+k+k+k+k$  

•  $8+k$  

•  $k^8$  

•  $8k$  

•  $\frac{k}{8}$