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Let w = cost of water slide
Let f = cost of Ferris wheel
3w + 3f = 17.70
2w + 3f = 15.55
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Solve by any method mentioned.
If done algebraically:
3w + 3f = 17.70
2w + 3f = 15.55
w = 2.15
The water slide costs $2.15 per slide.
Substitute:
2(2.15) + 3f = 15.55
4.30 + 3f = 15.55
3f = 11.25
f = 3.75
The Ferris wheel costs $3.75 per ride. |
