Let's say one pipe can fill 1/10th of the swimming pool per hour; and the other can fill 1/8th of the pool per hour. Then, working together they can do:
1/8+1/10=5/40+4/40=9/40 pool per hour
1 pool/(9/40) pool/hour=40/9 hours for one pool when the pipes are working together
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Answer:
The first and last ones are correct
Step-by-step explanation:
the first factor is 14.9/-1 = -14.9
The product is -14.9 * -1 = 14.9
The first factor is -14.9
The product is 14.9
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-Chetan K
Answer:
Acute angle, doesn't have a 90 degree angle to be a right triangle, neither a wide angle to be an obtuse triangle.
Answer:
b=4
Step-by-step explanation:
4b + 5 = 1 + 5b
Subtract 4b from each side
4b-4b + 5 = 1 + 5b-4b
5 =1+b
Subtract 1 from each side
5-1 = 1-1+b
4 =b
Answer:
2^-3
Step-by-step explanation:
4^(-6)*4^(4)*(2^(3)*2^(-4))^(-1)
2^-3