My guess is 9 hours, because since pipe a takes 12 hours and with pipe b it takes 9, it's 12-9=3
I think.
Answer:
4
Step-by-step explanation:
So, 6 feet is equal to 72 inches. You need 18 inches for one bracelet, so by dividing 72/18, you get 4. So, he can make 4 bracelets.
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Answer:
Because they will give same answer.
Step-by-step explanation:
12x +24x +18 = 36x +24 -6
36x +18 = 36x +18