x equals -12 and y equals 1/4 of -12, so y = -3.
Insufficient information. What is x when y = 12?
26.
y is directly proportional to x. When y = 15, x = 3 therefore y = 5x When x = 12, then y = 5 x 12 = 60.
x=y-8 z=x+12
y is 12
-6/y=5/-2 5y=12 y=12/5
13 ? 15
x+ySince x=4, we can replace the x with a 4:4+ySince y=12, we can replace the y with a 124+12 = 16
80
You plug in the values of x and y and solve 12x + 16y = ? 12(1) + 16(2) = 12 + 32 = 44
y = cx when x = 8, y = 12 so that 12 = 8c which gives c = 12/8 = 1.5
x=6 y=30