Answer:-111
and -99
Step-by-step explanation:
Answer:
No mistake
Step-by-step explanation:
2x + y = 5
x - 2y = 10
y = 5 - 2x
x - 2(5 - 2x) = 10
x - 10 + 4x = 10
5x - 10 = 10
5x = 20
x = 4
2(4) + y = 5
y = -3
She made no mistake
You can check by plugging in x = 4 and y = -3 into the original equations . They fit exactly.
Answer:
B
Step-by-step explanation:
Answer:
It's 3
Step-by-step explanation:
The formula for the area of a right triangle = (1/2)(base)(height)
x = the height
Area = (1/2)(10)(x)
= 5x
Now, bring in the "greater than or equal to 8 square feet" part of the problem.
5x ≥ 8