1,One pump can empty a pool in 3 days, whereas a second pump can empty the pool in 11 days. How long will it take
the two pumps, working together, to empty the pool? (Fractional answers are OK.)
The first pump's rate is per day._______
The second pump's rate is per day.___________
The combined pumps rate is per day.___________
It will take the two pumps days to empty the pool together.__________
2, The number of widgets that a manufacturing plant can produce varies jointly as the number of workers and the time that they have worked. Find the constant of proportionality k to 2 decimal places if 550 workers work 3 hours and can produce 16549.5 widgets.
k = _____
How many widgets can be produced by 600 workers in 34 hours?
Widgets = ________
3, Suppose that y is inversely proportional to x.
Find the constant of proportionality k if y = 16 when x = 12.
k = _______
Using the k from above write the variation equation in terms of x.
y = ________
Using the k from above find y given that x = 39.
y = __________
1) first pump's rate = 3 1 per day Ans. second pump's rate = 1 1 1 per day Ans. combined... View the full answer