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.
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Answer:

Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine and getting you -2 7/12
<u>Hopes this helps</u>
x-1/3 = 2/7
=>x-0.33 = 0.2857
=>x-0.33+0.33=0.2857+0.33
=>x = 0.6157
Answer:
<h2>
RS = 47</h2>
Step-by-step explanation:
RV=VU and SW=WT means 
So:
