PRETEST: 1.2.4 Writing Expressions to Solve Problems

Which letter would be the most meaningful variable for this problem situation?

The distance a car travels divided by 7.

• d

• x

• s

• m

Which letter would be the most meaningful variable for this problem situation?

The volume of juice a container can hold multiplied by 2

• v

• x

• t

• m

Which letter would be the most meaningful variable for this problem situation?

The distance a bike travels divided by 3

• d

• x

• s

• m

Which math expression means "33 more than an unknown number"?

• X + 33

• 33 • x

• x ÷ 33

• x – 33

Which math expression means "the quotient of an unknown number and 18"?

• x ÷ 18

• 18 • x

• x – 18

• x + 18

Which math expression means "the sum of an unknown number and 15"?

• x + 15

• x - 15

• 15 • x

• 15 ÷ x

Which expression means "6 more than the quotient of a number and 5"?

• 5x + 6

Which expression means "3 less than the quotient of a number and 7"?

• 7x – 3

Which expression means "4 more than the product of a number and 3"?

• 3x + 4

• 3x – 4

• 4x + 3

Select the real-world situation that can be represented by 2m + 3.

• An online company charges a $3 shipping fee and $2 per item for a purchase.

• A music download website has a membership fee of $2 and charges $3 for each download.

• Grace bikes 2 more than 3 times the miles Jamie bikes.

• Bentley swims 3 less than 2 times the laps Dan swims.