WRITE AN EQUATION & SOLVE: Julie is 3 years older than her sister. Julie's age is 11 years old. How old is her sister?
n - Julie's sister's age n + 3 = 11 n = 8 Julie's sister is 8 years old.
Mr. Cushman bought 7 Hannah Montana t-shirts for a total of $70. Each t-shirt cost the same amount. How many Hannah Montana t-shirts did Mr. Cushman buy?
n - # of t-shirts 7n = 70n. Each t-shirt cost $10.
Tyler has 4 boxes of apples. Each box has the same number of apples. After Tyler eats 3 apples, there are 109 apples left in the boxes. How many apples were in each box?
a - # of apples in each box 4a - 3 = 109 a = 28 There were 28 apples in each box.
Simplify. - (2b - 4)
-2b + 4
Mr. Bucci goes to the grocery store and purchases 17 bags of raisins. His total cost was $51. What was the cost for a bag of raisins?
r - cost of a bag of raisins 17r= 51 r = 3 Each bag of raisins cost $3.
Simplify. 7(t + 8) - 5t + 4
2t + 60
When you count by ones from any integer, you are counting consecutive integers. Using variables, three consecutive integers are n, n + 1, and n + 2. The sum of three consecutive integers is 48. What are the integers?
n + n + 1 + n + 2 = 48 n = 15 The integers are 15, 16, and 17.