A Bat and a ball cost $110. The bat costs 100 dollars more than the ball. How much does the ball cost?

Question

it is ann algebra question

Answer 1

This question can be written as two equations:

Bat + Ball = $110    equ. 1

$100 + Ball = Bat    equ. 2

 

From these equations you can use your favorite method for solving two equations and two variables. Since the Bat variable is all by itself in equation 2, I would suggest substitution. 

 

Hope this helps Sarah.