Answer:
x=40 y=16
Step-by-step explanation:
20x+50y=800 you can turn it into slope-intercept form and it would end up being y=-2/3x+16 so now you have your y intercept (16) and you know your rise and run -2(rise)3(run).
Or you can substitute a zero for x and solve for y
20(0)+50y=800 which equals 50y=800 which equals 16 y=16
then you substitute a zero for y and solve for x
20x+50(0)=800 which equals 20x=800 which equals 40 x=40
Y = 3x
Proof:
3(1) = 3
3(3) = 9
5. 9(3) = 27
6. 27(3) = 81
7. 81(3) = 243
The 7th term is 243.
60/15=4, 14*4= 56 BPM. 1512/56= 27 min
Answer:

Step-by-step explanation:
Given the function: 
f(x) =number of days it would take to complete the project
x =number of full-time workers.

The domain of a function is the complete set of possible values of the independent variable.
In this case, the independent variable is x, the number of full-time workers. We have shown that x cannot be zero as there must be at least a worker on ground.
Therefore, an appropriate domain of the function f(x) is the set of positive integers (from 1 to infinity).
