The answer is B., based on the distributive property (multiply coeffictients, add exponents, change signs because of the negative number being multiplied)
First set up your two equations:
x + y = 90
x = 2y - 30
Then substitute what x equals in the second equation into the first equation:
(2y -30) + y = 90
Now solve for y:
3y -30 = 90
3y = 120
y = 40
Then use y = 40 and substitute the value for y into one of your original equations and solve for x. I'll choose the first one, but either one will work.
x+ 40 = 90
x = 50
So your solution is x = 50 and y = 40
The Answer is -16
I hope this helps
Answer: 50.27
Step-by-step explanation:
Area = pi r^2
= pi x 16
20 seconds faster than Jesse so one minute and 57 seconds is my best guess.
