2
12= 2 * 6
26= 2 * 13, gcf is 2
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Rate (or speed) = distance/time
V1 = 135/3 = 45 mi/h
V2 = 189/3.5 = 54mi/h
Answer: 5x+2y=2
Step-by-step explanation:
5x+2y=2 move 5x to the other side
2y=-5x+2 divide the other side by the 2 from 2y
y=-5x+1
Answer:
y=-6 and x=0
Step-by-step explanation:
-4x -2y = -12
4x + 8y = -24
(add the equations)
6y = -36
-36/6 = -6
y=-6
(Add y value in any of the equations)
-4x-2(6) = -12
-4x-12=-12
-4x=0
x=0
Answer:
let w = amt of water required
:
An equation based on the the percent water, an 80% solution is 20% water.
.20(320-w) + w = .50(320)
64 - .2w + w = 160
.8w = 160 - 64
w = 96%2F.8
w = 120 gal of water to produce 320 gal of 50% antifreeze
:
320 - 120 = 200 gal of 80% solution
Water: _120___ gallons
Premium Antifreeze: __200___ gallons
Step-by-step explanation: