Answer:
The solution would be (0, 5)
Step-by-step explanation:
In order to solve this system by substitution, simply take the value of y in the first equation and use it in place of y in the second. This will allow you to solve for x.
4x + 4y = 20
4x + 4(x + 5) = 20
4x + 4x + 20 = 20
8x + 20 = 20
8x = 0
x = 0
Now that we have the value of x, we can find the value of y.
y = x + 5
y = 0 + 5
y = 5
You need 710 ft of fencing.
Answer:
OB = 15
Step-by-step explanation:
If AT = 12 and KN = 18, then the middle must be half of each since its in the middle, 3 from 12 and 3 from 18 is 15.
100÷11=9.09090909
converting it it will be 9.1 miles per hour
Number 8 is 300 because 10 times 3 equal 300