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3 years ago

15

What is the solution to the system of equations? Use the substitution method to solve. 6=−4x+y−5x−y=21 Enter your answer in the

boxes.

1 answer:

miss Akunina [59]3 years ago

5 0

Answer:

x=-3 and y= -6

Step-by-step explanation:

we have

6=-4x+y and -5x-y = 21

6+4x=y we substitute y in the second equation

-5x-(6+4x)=21

-9x-6=21

-9x=27

x=-3

we substiture x in the second

-5(-3)-y =21

15-y=21

15-21=y

y=-6

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3 years ago

Bryan and Jadyn had barbeque potato chips and soda at a football party. Bryan ate 5 oz of chips and drank 1 cup of soda for a

MaRussiya [10]

Answer:

1 oz of chips has 120mg of sodium, while in 1 cup of soda there are 50mg of sodium.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of mg of sodium in 1 oz of chips.

y is the number of mg of sodium in a cup of soda.

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3 years ago

If x=at^3 and y=bt^2 then find dy/dx

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schepotkina [342]

Answer:

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Step-by-step explanation:

1) y=mx+b 3=(-1/4)(-1)+b b= 11/4

2) y=mx+b -5=(4)(7)+b b= -33

3) y=mx+b -5=(2/3)(-2)+b b= -11/3

4) y=mx+b 3=(5)(1)+b b= -2

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