Answer:
x=4, y=1
Step-by-step explanation:
3.6x + 1.6y = 16
1.2x+3.2y = 8
Multiply the first equation by -2
-2(3.6x + 1.6y) = 16*-2
-7.2x -3.2y = -32
Add this to the second equation to eliminate y
-7.2x -3.2y = -32
1.2x+3.2y = 8
--------------------------
-6x = --24
Divide each side by -6
-6x/-6 = -24/-6
x=4
Now to find y
Multiply thesecond equation by -3
-3(1.2x+3.2y) = 8*-3
-3.6x -9.6y = -24
Add this to the first equation
-3.6x -9.6y = -24
3.6x + 1.6y = 16
---------------------------
-8y = -8
Divide each side by -8
y = 1
The answer I believe would be A
Answer:
Option C) Mrs. Sampson needs to use 1/4 cup of milk
Step-by-step explanation:
we know that
If Mrs. Sampson has only 4 tablespoons of butter, then the amounts of the ingredients to be used will be half (50%) of the recipe
so
sugar ----> 2/2=1 cup of sugar
butter ---> 8/2=4 tablespoons of butter
milk ---> (1/2)/2=1/4 cup of milk
baking cocoa ---> (1/3)/2=1/6 cup of baking cocoa
oats ----> 3/2=1.5 cups of oats
therefore
Mrs. Sampson needs to use 1/4 cup of milk.