2 wallets and 4 caps cost $67.90 and 5 wallets and 9 caps cost $160.25 what is the cost of 1 cap?
2w + 4c = 67.90 Multiply this equation by - 2.5 (we are trying to get the 'w' to cancel out)
5w + 9c = 160.25
-5w -10c = -169.75 Now add the bottom two equations
- c = -9.50
c = = $ 9.50
2 wallets and 4 caps cost 67.90 $ and 5 wallets and 9 caps cost 160.25 $. what is the cost of 1 cap?
Hello Guest!
2w+4c=67.90$ | ×55w+9c=160.25$_ | ×−2
10w + 20c= 339.50$−10w−18c=−320.50$_ | add
2c=19$
c=9.50$
The cost of 1 cap is 9.50$.
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