2 years ago

PLEASE HELP WILL MARK BRAINLIEST!

Mathematics

1 answer:

ipn [44]2 years ago

5 0

Answer:

2 x 4 − x 3 + x 2 − 9

Step-by-step explanation:

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a dairy needs 306 gallon of milk containing 6% butterfat. how much gallons each of milk containing 7% butterfat and milk contain

Andreyy89

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306 gallons of milk containing 6% butterfat contain 18.36 gallons of butterfat.

x - the number of gallons of 7% milk
y - the number of gallons of 4% milk

$x+y=306 \\
7\%x + 4\%y=18.36 \\ \\
x+y=306 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-4) \\
0.07x+0.04y=18.36 \ \ \ \ |\times 100 \\ \\
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204 gallons of 7% milk and 102 gallons of 4% milk should be used.

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3 years ago

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Thepotemich [5.8K]

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Hello there,
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~Top
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