X+y = 12
x-y = 3
x = 3+y
Substitute it in 1st equation,
3+y+y=12
2y = 9
y = 4.5
Substitute it in 1st eq.,
x = 12-4.5 = 7.5
So, the two numbers are 7.5 & 4.5
Hope this helps!
Answer:
its not working so i cant :(
Step-by-step explanation:
Answer:
5.50x+10y≤800
Step-by-step explanation:
The pull bouys are $5.50 each (5.50x)
The kickboards are $10 each (10y)
And the words "at most" mean less than or equal to
Hope this helps
(can I plz have a brainliest)
Answer:
Step-by-step explanation:
Answer:
area of a square is S^2
s = 5n^4
area = (5n^4)^2 = 25n^8
Step-by-step explanation: