Variable Expressions

Three times a number increased by nine

• 3h-9

• 3(h-9)

• 3(h+9)

• 3h+9

The product of 7 and j increased by 3.

• 3+7j

• 7j-3

• 7(j+3)

• 3j+7

A letter that represents a number is called a _____.

• variable

• coefficient

• constant

• term

The product of 12 and j

• 12 + j

• 12 - j

• 12j

• 12/j

h increased by 10

• h + 10

• h - 10

• 10h

• 10/h

triple the sum of 54 and t

• 54 + t - 3

• 3 (54 + t)

• 3 (54 - t)

• (54 + t) / 3

the quotient of m and 6

• m + 6

• m - 6

• 6m

• m/6

double the quantity of 7 and a

• (7 + a) / 2

• 2 (7 + a)

• 3 (7 + a)

• 2 (7 - a)

p decreased by 10

• p + 10

• p - 10

• 10 - p

• p/10

Translate this phrase into an algebraic expression.

The quotient of twenty and a number

Use the variable n to represent the unknown number.

• 20/n

• 20-n

• n+20

• n-20