Question

Bart has 11 more baseball cards than Tom. Together, they have 163 baseball cards. How many baseball cards does Tom have?

Answer 1

Answer:

c

Step-by-step explanation:

Let Bart's cards = t

Let Tom's cards = b

Adding up Bart's and Tom's cards will add up to 163 like this

b + t = 163

Also Bart has 11 more than Tom

b = t + 11

Plug in the new b

t + 11 + t = 163

2t + 11 = 163

Subtract 11 from both sides

2t + 11 = 163

    - 11   - 11

2t = 152

Divide both sides by the coefficient, 2, to isolate the variable, t.

2t/2 = 152/2

t = 76

Answer 2

Answer:

c

Step-by-step explanation:

If Bart has 11 more than Tom, you can't have a. If the addition is 163, then you can add 76 and 87. Bart has 87 and Tom has 76.