SOLUTION: To mix weed killer with water correctly, it is necessary to mix 25 teaspoons of weed killer with 5 gallons of water. Find how many gallons of water are needed to mix with the en
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Question 1176020: To mix weed killer with water correctly, it is necessary to mix 25 teaspoons of weed killer with 5 gallons of water. Find how many gallons of water are needed to mix with the entire box if it contains 35 teaspoons of weed killer. Found 2 solutions by math_tutor2020, josgarithmetic:Answer by math_tutor2020(3817) (Show Source):
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We can form the ratio below, and divide both parts by 5
25 teaspoons of weed killer : 5 gallons of water
25/5 teaspoons of weed killer : 5/5 gallons of water
5 teaspoons of weed killer : 1 gallon of water
So 5 teaspoons of weed killer needs 1 gallon of water.
Then multiply both sides by 7 to turn "5 teaspoons" into "35 teaspoons"
5 teaspoons of weed killer : 1 gallon of water
7*5 teaspoons of weed killer : 7*1 gallon of water
35 teaspoons of weed killer : 7 gallons of water
You need 7 gallons of water
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Another way to solve:
(25 teaspoons of weedkiller)/(5 gallons of water) = (35 teaspoons of weedkiller)/(x gallons of water)
25/5 = 35/x
25*x = 5*35
25*x = 175
x = 175/25
x = 7
You need 7 gallons of water to mix with 35 teaspoons of weedkiller
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