X - y = 1....multiply by -5
5x - 4y = 0
---------------
-5x + 5y = -5 (result of multiplying by -5)
5x - 4y = 0
---------------add
y = -5
x - y = 1
x - (-5) = 1
x + 5 = 1
x = 1 - 5
x = -4
solution is (-4,-5)
30 times 15 = 450 so the flower is 450 inches tall
The answer is 2 hours because from 5 to 7 the temperature was raising <span />
Multiply the top values together and the bottom values together.
(2/8)*(3/5)
=(2*3)/(8*5)
=6/40
=3/20
Hope this helps!