Write a problem for each of the following equations. a) 12 – X = 3 b) 12X = 60 c) 3X + 2 = 11

Question

Write a problem for each of the following equations.

a)        12 – X = 3

b)        12X = 60

c)        3X + 2 = 11

Answer 1

a) if you have a foot of rope and cut off 3 inches how many inches of rope do you have left?

12-x=3, where 1 foot=12 inches and x=the rope left

x = 12-3 = 9 inches

b) how many minutes are in one-twelfth of an hour? let x= the number of minutes

x=60/12 = 5 minutes

12x = 60

c) 3x+2 =11

Joe had 11 marbles. He gave 2 away to Rachel, then he gave 2/3 of what remained to Nancy. How many marbles does Joe now have left? x = the number left x=3

(11-2)/3 = x

3x = 11-2

3x+2 = 11