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3 years ago

Solve this linear equation using substitution. (Please show work!) y = -x y= 3x - 4

Mathematics

2 answers:

Arturiano [62]3 years ago

6 0

Answer:Under↓↓↓

Step-by-step explanation:

-x=3x-4 (substitute -x for y)

-4x=-4 (Subtract 3x from both sides)

x=1 (Divide both sides by -4)

Since y=x then y=1

iris [78.8K]3 years ago

4 0

Answer:

X=1

Step-by-step explanation:

So if you look at the two y= equations, you'll see that you can make them equal two one another because they both equal y

Placing the -x in place of y for it to look like this; -x = 3x-4. Subtract the 3x to the other side to get -4x =-4. Then divide the 4 from the x to isolate it and you get x=1!

Hope that helps!

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3 years ago

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GenaCL600 [577]

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3 years ago

Given any undergraduate student, there is 10% chance that they will join the graduate program. In an undergraduate class of 400

nydimaria [60]

Answer: A. 5%

Step-by-step explanation:

Given : The chance that they will join the graduate program : p=0.10

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$\mu=np=400\times0.10=40\\\\\sigma=\sqrt{np(1-p)}=\sqrt{400\times0.10(0.90)}=6$

We assume that this is normal distribution.

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For x= 50 , we have

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4 years ago

Of the 1,640 students enrolled at a school, 50% come to school by bus, 35% come by car, and the rest of the students walk home.

ehidna [41]

So first we need to find what percent of the students walk to school.

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3 years ago

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Tju [1.3M]

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