What do you mean this sentence?
the time a pump takes to drain the pool varies inversely with the power in watts of the pump,
The meaning would be : if we have a power in watts greater the time to drag the pool will be less because the relation between power and time is inverse.
40 watts--------------5 hours)
100 watts------------ x
because the relation between power and time is inverse, we multiply directly.
40 watts(5 hours)=100 watts x
x=(200 watts hours) / 100 watts=2 hours.
Answer: the time would be 2 hours. (the new pump is faster)
Answer:
technically you multiply 3690 pick c
Step-by-step explanation:
Answer:
x = -119/3 = -39 2/3
Step-by-step explanation:
(128 +7x- 12) = (4x - 3)
Combine like terms
(116 +7x) = (4x - 3)
Subtract 4x from each side
116 +7x-4x=4x-4x-3
116 +3x = -3
Subtract 116 from each side
116-116 +3x = -3-116
3x = -119
Divide each side by 3
3x/3 = -119/3
x = -119/3
x = -39 2/3
Answer:
She needs 3/4 or 0.75 cups of sugar.
Step-by-step explanation:
1/2 = 2/4
2/4 + 1/4 = <em>3/4</em>
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Then to get it as a fraction, you divide 3 by 4 and you get 0.75. Hope this helps!!
5 - (3 x -7)
5 - (- 21)
5 + 21
26