Algebraic Representations

Barbara orders her groceries from a store that charges $15 plus the cost of her groceries to deliver the groceries to her home. Which equation represents this relationship?

• y = x + 15

• y = 15

• 15 = y + x

• y = 15x

Jose travelled at a rate of 0.25 miles per minute. Which equation represents this relationship?

• y = ^x/₄

• y = x + 0.25

• y = ​¹⁄₄x

• y = 0.25

Which equation best represents the relationship in this table?

• y = 9.6x

• y = 10.6x

• y = 9.6

• y = x + 9.6

Eduardo had eight dollars, then he started to save a dollar a week. Which equation can be used to find how much money Eduardo will have at the end of the month?

• y = 1 + 8

• y = 8x

• y = x + 8

• y = ⁸/_x

What best represents "five times a number?"

• v + 5

• y - 5

• 5n

• x/5

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts. 6( ​ (a)   x + ​ (b)   y)

​ (c)   x + ​ (d)   y

• 3

• 4

• 18

• 24

• 7

9 less than x

• 9 - x

• 9 + x

• x - 9

• x + 9

Match the following

• x/2

• 9 less than a number

• x - 9

• half a number

• 9 - x

• twice a number

• 2x

• The sum of a number and 9

• x + 9

• The difference of 9 and a number

Which algebraic expression correctly represents the sum of 6 and n?

• n - 6

• 6n

• 6 + n

WHAT COULD REPRESENT 7X + 2 = 30?

• BUYING PET TURTLES FOR $7 EACH PLUS TWO CANS OF TURTLE FOOD COST $30.

• TWO YOYOS PLUS SEVEN FRISBEES IS THIRTY CENTS.

• SEVEN BAGS OF CANDY PLUS 2 EXTRA SNICKERS BARS EQUALS 30 DOLLARS.

• BUYING SEVEN CALCULATORS PLUS $2 PER BUNDLE OF PENCILS IS $30.