440 gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get a mixture that is 70% antifreeze
<em><u>Solution:</u></em>
Let "x" be the gallons of 80 % antifreeze added
Therefore, "x" gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze
Final mixture is x + 80
Therefore, we can frame a equation as:
"x" gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get (x + 80) gallons of 70 % antifreeze
Thus, we get,
x gallons of 80 % + 80 gallons of 15 % = (x + 80) gallons of 70 %

Thus 440 gallons of 80 % antifreeze solution must be mixed
Answer: 135
Step-by-step explanation:
m<D+45=180
the measure of <D is 135
Answer:
The correct answer is A. 4/21.
Step-by-step explanation:
Given that Leo hiked 6/7 of a kilometer, while Jericho hiked 2/3 kilometers, to determine who covered a longer distance and how much longer it was, the following calculation must be performed:
Common multiple of 7 and 3 = 21
6/7 = 18/21
2/3 = 14/21
18 -14 = 4
Thus, Leo hiked a longer distance, hiking 4/21 km more than Jericho.
Answer:
idk
Step-by-step explanation: