Question

Tennis racket and tennis ball cost $2.10. The tennis racket cost two dollars more than the tennis ball . how much the tennis ball cost?

Answer 1

The cost of the tennis ball is $0.05.

Let the cost of tennis racket be R.

Let the cost of tennis ball be B.

To find the cost of the tennis ball:Translating the word problem into an algebraic expression, we have;

R+B=2.10 ....equation 1

R=B+2 .....equation 2

Substituting eqn 2 into eqn 1, we have;

B+2+B=2.10

2B+2=2.10

2B=2.10−2

2B=0.10

B= 0.10/2

Tennis ball, B = $0.05

Therefore, the tennis ball cost $0.05.

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