Sally's tower is 12 inches taller than Mary's tower. If Sally's tower is S inches tall, write an equation that you could use to solve the height of Mary's tower M.
S = M + 12
or M = S - 12
300
c - 3.4 = 10
c = 6.6
300
Lisa bought L shirts. That is 3 times the number of shirts that Nick bought N. Write an equation that represents how many shirts Lisa bought.
L = 3N
300
24 = c ÷ 0.6
c = 14.4
300
Sam is s inches tall. That is 3 times the height of his cat. Write an equation in 2 variables to represent sam's height s based on the height of his cat c.
s = 3c
400
Solve:
$12.50 + r = 32.20
r = $19.70
400
Mark bought 24 books more than Terry. If Terry bought T books, write an equation that could be used to find the number of books that Mark bought.
M = 24 + T
400
2.3g = 9.66
g = 4.2
400
For every quarter spent, Sammy gets 10 beads to make a necklace with. She has gotten s beads. Write an equation in 2 variables to represent how many quarters q she spent.
10q = s
or s = 10q
400
Harry has $56 more than Paul. If Paul has p dollars, write an equation in 2 variables to show what Harry h has.
h = p + 56
or h = 56 + p
500
Jordan has 78 songs more than Sarah on her i-pod. If Sarah has S songs, write and SOLVE an equation that you can use to find the number of songs J that Jordan has.
J = 78 + S
500
w - 22 = 4.68
w = 26.68
500
Kim went to the store and bought 5 books for a total of $18.50. Write and SOLVE an equation to figure out the amount of each book.
5b = $18.50
b = $3.70
500
16 = ⅔ z
z = 24
500
Gives 2 examples of inverse operations?
addition and subtraction
multiplication and division