Answer:
See below.
Step-by-step explanation:
<u>Problem:</u>
Solve y=2x;y=−x+2
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<u>Steps:</u>
I will solve your system by substitution.
y=2x;y=−x+2
Step: Solve y=2 x for y:
Step: Substitute 2x for y in y=−x+2:
y=−x+2
2x=−x+2
2x+x=−x+2+x(Add x to both sides)
3x=2
3x/3 = 2/3 (Divide both sides by 3)
x=2/3
Step: Substitute 2/3 for x in y = 2x
y=2x
y = 2(2/3)
y = 4/3 (Simplify both sides of the equation)
<u>Answer:</u>
x = 2/3 and y = 4/3
Well, 4 times 7 is 28 and then plus 2 is 30! Therefore, he buy at the most 7 books.
Hello from MrBillDoesMath!
Answer: 21
Discussion:
g(3) = 3^2 -2 = 9 -2 = 7 =>
f(g(3)) = f (
7) = 2(7) + 7 = 14 + 7 = 21
Thank you,
MrB
Answer:
scientific notation is the system to write very large or very small number.
Answer:
5 seats
Step-by-step explanation:
if I'm getting the right idea, the seats are NOT enough
since the number of arrangement of 10 people in a row is
10! = 3628800 which is a lot larger than 30240.
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Let number of seats be
10PX = 30240
= 30240
(10-X)! = 
(10-X)! = 120
(10-X)! = 5!
10-X = 5
X = 5
