Answer:
y=2
x=-1
Step-by-step explanation:
2x-4y=-10
-2x-y=0
Add Together and get:
-5y=-10
y=2
put the 2 in for y in either equation to solve for x
2x-4(2)=-10
2x-8=-10
2x=-2
x=-1
V = 1/3 * 3.14 * 11 * 6^2 = 414.48 m^3
cost = V * 20 = 414.48 * 20 = 8289.60
The Ostrich will take 64 minutes to cover 40 miles.
Data;
- rate = 25 miles in 40 minute
<h3>Rate</h3>
To calculate the time it will take the ostrich to cover 40 miles, we have to compare it with the rate (speed).

Cross multiply both sides

simplify the value

divide both sides by the coefficient of x

From the calculations above, it would take the ostrich 64 minutes to cover 40 miles.
Learn more on rates here;
brainly.com/question/8728504
Answer:
B
Step-by-step explanation:
2y=-3x+6
y = -0.5x + 3
this is a function because it is a linear equation that isn’t undefined