Question

Maggie has $30. she buys 4 T-shirts that cost $6 each. What can she use to find out how many money, m, she has left?

Answer 1

See 2 methods below.

Explanation:

She can do it this way:

Cost of 1 T-shirt = $6

Cost of 4 T-shirts = 4 × $6 = $24

Amount if money she had = $30

Amount of money she has left = $30 - $24 = $6

m = 6

She can also use an equation:

Cost of 4 T-shirts = 4 × 6 = 24

Amount she has left = m

Total amount she had = m + 24

Total amount she had = 30

Equation:

m + 24 = 30

Solve the equation:

m + 24 = 30

Subtract 24 from both sides.

m = 6