We have 60 gallons of 20% antifreeze.
How much 70% antifreeze do we add to get 60% antifreeze?
We'll make "x" the gallons of 70% we must add.
.20 * 60 + .70 x = .60 * (60 + x)
12 + .70x = 36 + .60x
.10x = 24
x = 240 gallons of 70% antifreeze.
Source
1728.com/mixture.htm (see example B)
13. A=(-1,3) 14.m= (-4,1)
Answer:

Step-by-step explanation:
Use Distance Formula

Substitute

Simplify

Simplify

Add

Answer:
your a nigeor
Step-by-step explanation: