Answer:
240
Step-by-step explanation:
(2x36)/2=36
(36+39)x2/2=75
(31+39)x2/2=70
(14+31)x2/2=45
(2x14)/2=14
14+45+70+75+36=240
3/5 X 3 1/2 = 3/5 X 7/2 = 21/10 = 2.1 in²
let x=2t and y=5t
-x+3y = -2t+15t = 13t
2x+y = 4t+5t = 9t
So the ratio is 13t : 9t
So, the ratio is 13 : 9
mulitply and divide by both sides
and yes
Tell me if i am wrong. :)
To solve for y:
Q.1 2x + y = -1
y = -1 - 2x
Q. 2. 4x - 5y = 7
y = 7 - 4x over -5
