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2 years ago

The solution of equations system using the Substitution Method

Mathematics

1 answer:

AlexFokin [52]2 years ago

5 0

Answer:

True

Step-by-step explanation:

$\begin{cases} y = 3x \\\\ 2y + 2x = 24\end{cases}$

Plugging y = 3x in the equation 2y + 2x = 24, we find:

2(3x) + 2x = 24

6x + 2x = 24

8x = 24

x= 24/8

x = 3

Plugging x = 3 in the equation y = 3x we have:

y = 3*3 = 9

(x, y) = (3, 9)

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3 years ago

Use the Pythagorean theorem to answer 4 5 and 6

Lady bird [3.3K]

Okay, the formula for this would be

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Lets start with 4.

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3 years ago

Nick and Sally run on the 100m straight track,Nicks's speed is 3m/s,Sally's soeed is 2m/s.If they both start from two sides of t

Pepsi [2]

They would meet 30 times after 10 minutes.

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30 x 20 + 2 x 20 = 60 + 40 = 100
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600/20 = X
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Therefore, they would meet 30 times after 10 minutes.

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3 years ago

X=y^2 is x a function of y

oksano4ka [1.4K]

It is false that x is a function of y

<h3>How to determine the true statement?</h3>

The equation is given as:

x = y^2

Set y = 2

x = (2)^2

x = 4

Set y = -2

x = (-2)^2

x = 4

Different values of y give the same x value.

This means that x is not a function of y