Answer:
x + y = 9.
Step-by-step explanation:
xy = 2(x + y)
xy = 6(x - y)
2x + 2y = 6x - 6y
8y = 4x
x = 2y
Substitute for x in the first equation:
2y^2 = 2(2y + y)
2y^2 = 6y
y^2 = 3y
y(y - 3) = 0
y = 0, 3.
x = 2y = 0 , 6.
As the integers are positive they must be 3 and 6.
x + y = 3+6 = 9.
You can not work out it unless provided initial distance between the house and shoreline.
Answer:pretty sure its 20
Step-by-step explanation: so i took 7 and multiplied it by 2 because that is how much is sold every day and got 14. then added six to that and got 20. then i wrote this on my paper:
20 18 16 14 12 10 8
S M T W T F S
so by Saturday you should have 8 and that would leave you 6 on sunday after you sell 2. does that make sense?
Well I don’t know this but I hope you get your answer..
Answer:
6
Step-by-step explanation:
=cos30°
x=
solove for x
x = 6