Answer:
Problem:
Solve x+y=7;x+2y=11
Steps:
I will try to solve your system of equations.
x+y=7;x+2y=11
Step: Solvex+y=7for x:
x+y+−y=7+−y(Add -y to both sides)
x=−y+7
Step: Substitute−y+7forxinx+2y=11:
x+2y=11
−y+7+2y=11
y+7=11(Simplify both sides of the equation)
y+7+−7=11+−7(Add -7 to both sides)
y=4
Step: Substitute4foryinx=−y+7:
x=−y+7
x=−4+7
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=4
Answer: b
Step-by-step explanation: i got it right on edg 2020 :))
Answer:
12%
Step-by-step explanation:
75 X p = 9
p = 9/75
p = .12
.12 is 12%
Check the answer:
75(.12) = 9
The answer is 202 miles devided with 4 hours
202/4=50.5 m/h
164 - 0.238(164) = 164 - 39 = 125 <== sold in Feb.