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NEED HELP ASAP!!! ON A KHAN ACADEMY TEST AND DON"T HAVE MUCH TIME LEFT!!! CORRECT ANSWER GETS BRAINLIEST!!!

Otto has some whipping cream that is 30% butterfat and some milk that is 2% butterfat. He wants to make a 500 mL mixture of them that is 12% butterfat. Here's a graph that shows a system of equations for this scenario where x is the volume of whipping cream he uses and y is the volume of milk he uses. A graph with two lines and a point.

NEED HELP ASAP ON A KHAN ACADEMY TEST AND DONT HAVE MUCH TIME LEFT CORRECT ANSWER GETS BRAINLIEST Otto has some whipping cream that is 30 butterfat and some mil class=
NEED HELP ASAP ON A KHAN ACADEMY TEST AND DONT HAVE MUCH TIME LEFT CORRECT ANSWER GETS BRAINLIEST Otto has some whipping cream that is 30 butterfat and some mil class=

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disneylover21605

Answer:

Step-by-step explanation:

This is correct, except that if you have two variables you will need two equations. The other equation (the easy one!) was x+ y = 100, from which you might want to solve for y = 100-x, and substitute into the other equation to get:

.30x + .02(100-x) = .04(100)

.30x + 2 - .02x = 4

 

.28x = 2

x = 2/.28 = 50/7 or approximately 7.14 gallons of cream

100-x = 92 6/7 or approximately 92.86 gallons of 2%

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mirsalikhovh

Answer:

B trust me

Step-by-step explanation:

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