Algebra Equations and Expressions

Choose the correct algebraic expression for: twenty-one less than one third of a number

• 1/3n - 21

• 1/3 - 21n

• 21 - n/3

• n/3 - 21

Translate: the product of a number and two subtracted by the number

• 2x - x

• (x + 2) - x

• 2x - 2

• 2 (x - 2)

Evaluate -3c ^. 5d when c =4 and d = 3

• -180

• -96

• 96

• 180

Evaluate 3d + 10e when d = -5 and e = 2

• -44

• -39

• 5

• 35

Write an algebraic equation.

Dean ate 11 grapes after dinner, which was 3 more than twice as many grapes as Sara ate.

• 2g + 11 = 3

• 2g + 3 = 11

• 2g - 3 = 11

• 2g - 11 = 3

Evaluate 3x² + 5y when x = -4 and y = 3

• -33

• 7

• 63

• -63

The distance Maxie can run in her first training run is represented by the equation d = 0.5m - 2. What is the maximum distance, m, that she can run if her first training run is 3 miles?

• 10 miles

• 8 miles

• 6 miles

• 4 miles

The student council is selling pens for a fundraiser. The equation, 144p - 309.60 = 50.40, represents the amount of money they raised where, p, is the selling price of each pen. Calculate the price of one pen?

• $1.80

• $2.15

• $2.50

• $2.72

You and your friend spent a total of $15 for lunch. Your friends's lunch cost $3 more than yours did. How much did you spend on lunch?

• $6

• $7

• $8

• $9

Solve: 9 - t = -34

• t = 43

• t = -43

• t = -25

• t = 25