How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture that is 70%

Question

VikaD [51]

2 years ago

15

How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture that is 70%

antifreeze? Use the six-step method.

Mathematics

2 answers:

yaroslaw [1] · Answer 1 · 2022-02-03T15:13:10+03:00

yaroslaw [1]2 years ago

8 0

X=350 GALLONS OF 70%

morpeh [17] · Answer 2 · 2022-02-03T16:39:41+03:00

morpeh [17]2 years ago

7 0

We have 100 gallons of 25% antifreeze.
How much of 80% antifreeze do we need to add to make a 70% solution?

.25 * 100 + .80x = .70 * 100 + x
25 + .80x = 70 + .7x
.1x = 45
x = 450 gallons of 80% must be added to make a 70% solution.

How many gallons of a 80​% antifreeze solution must be mixed with 100 gallons of 25​% antifreeze to get a mixture that is 70​% ​

How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture that is 70%