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:
1/4
Step-by-step explanation:
We can find the slope of a line given two points from the formula
m = (y2-y1)/(x2-x1)
= (-2--1)/(-12--8)
= (-2+1)/(-12+8)
=-1/-4
= 1/4
Answer:
plug in the numbers for radius, and know your formulas. a diameter is 2 times a radius so
Pi or 3.14 times D is the same as 2 times pi times radius.
Answer:
3 of 4
The better deal will have the higher ratio of dollars per bagel.
To find the better deal, you must compare the fractions<u> 8/7 and 6/9. </u>
Comparng the fractions reveals that <u>Betty</u> has the better deal
Step-by-step explanation:
bobbs bagels: 8/7 equals 1.14, so each bagel would cost about $1.14
bettys bagels: 6/9 equals 0.66, so each bagel would cost about $0.66
$0.66 is better than $1.14 per bagel. therefore, bettys bagels are cheaper
hope this helps :)
