T3W8 - Algebra Review

"I divide a number "n" by 2 and the answer is 7". Write an equation for this statement

"I divide a number "n" by 2 and the answer is 7". Solve the equation to find the value for "n"

• n=7

• n=14

Adam is 4 times older than his daughter Jane. If Jane's age is represented by "j", write an algebraic equation for Adam's age

• a = 4j

• a = j + 4

• j = 4a

• j = a - 4

Adam is 4 times older than his daughter Jane. How old is Adam if Jane is 8?

• 2

• 40

• 16

• 32

x + 5 = 20

• x = 10

• x = 25

• x = 15

• x = 4

4x = 20

• x = 5

• x = 80

• x = 24

• x = 16

5x + 4 = 34

• x = 7

• x = 6

• x = 60

• x = 30

• x = 14

• x = 6

• x = 18

• x = 3

• x = 12

• x = 0

• x = 60

• x = 6

A rectangular football field is 100 meters long and "w" meters wide. Write an expression for the area of this field.

• A = 100w

• A = 100 + w

• A = 100 + 100 + w + w