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. Wiegs bought 7 Eras Tour t-shirts for a total of $90.93. Each t-shirt cost the same amount. How many Eras Tour t-shirts did Mr. Cushman buy?
n - # of t-shirts
7n = 90.93
n = 12.99
Each t-shirt cost $12.99
Lennox has 4 boxes of oranges. Each box has the same number of oranges. After Lennox eats 3 oranges, there are 109 oranges left in the boxes. How many oranges were in each box?
a - # oranges in each box
4a - 3 = 109
a = 28
There were 28 oranges in each box.
Gwandpa goes to the grocery store and purchases 17 bags of raisins and a $2.97 jar of peanut butter. His total cost was $34.76. What was the cost for a bag of raisins?
r - cost of a bag of raisins
17r + 2.97 = 34.76
r = 1.87
Each bag of raisins cost $1.87
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.