1. 7x-4y= -8 and x+2y= 14 solution as (x,y) pls help!!

(2 2/9, 12 5/9)

Step-by-step explanation:

multiply both sides of x+2y=14 by 2: 2x+4y=28

Add 7x-4y=-8 and 2x+4y=28: 9x=20

x=20/9

Plug in 20/9 into x+2y=14: 20/9+2y=14

2y=11 7/9

y= 11 14/9

y= 12 5/9

51 inches

Step-by-step explanation:

Volume of cylinder = pi * R² * h

Diameter of cylindrical jar = 3 inches

Volume of wax cylindrical jar = 360 in³

Radius of cylinder = diameter / 2 = 3 / 2 = 1.5 in

V = pi * R² * h

360 = pi * 1.5² * h

360 = 22/7 * 1.5² * h

360 * 7 = 22 * 2.25 * h

2520 = 49.5h

h = 2520 / 49.5

h = 50.909090

Maximum Height, h = 51 inches (nearest inch)