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3 years ago

- 3x – 4y= 23x + 3y = -3 how to solve the system of equations by substituting

Mathematics

1 answer:

PolarNik [594]3 years ago

6 0

Answer: x=-2 Y=1

Step-by-step explanation: You convert the first equation to slope form then you take the second equation, so 3x+3y=-3 and you plug in the Y. So this would be 3x+3(-3/4-1/2)=-3. Then you would solve that equation and get the answer 3x-9/4x-3/2=-3. Now you combine like terms to get the answer 3/4x-3/2=-3 and you add 3/2 to both sides of the equation which leaves you with 3/4x=-3/2 now you solve for x and get -2. Now to find the y you take the first equation, that you converted to slope intercept form y=mx+b, and you plug in the x. Which would give you the problem, y=-3/4(-2)-1/2 then you get y=3/2-1/2 and you combine like terms to get the answer y=1

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tino4ka555 [31]

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2 years ago

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Tlachihualtepetl is a pyramid in Mexico. Each side of the base measures 450 meters and had an original height of 66 meters. How

LenKa [72]

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Step-by-step explanation:

We are given the following in the question:

Base measure = 450 meters

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$V = \dfrac{AH}{3}$

where A is the ares of the base and H is the height of the pyramid.

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2 years ago

If a restaurant bills totals $85, what amount should be left as a 15$ tips

IgorC [24]

If the total bill is $85, and you want to leave a 15% tip, then you can calculate it as follows:

85 * 15%

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3 years ago

What is the converse of the statement?<br> "If x - 2 = 5, then x = 7"

dlinn [17]

ANSWER

"If x=7, then x - 2 = 5"

EXPLANATION

Let

$p \to \: q$

be a propositional statement.

The converse of this statement is

$q \to \: p$

In other words, the converse of the statement,

"If p then q" is "If q, then p"

The given given conditional statement is

"If x - 2 = 5, then x = 7"

Therefore the converse is

"If x=7, then x - 2 = 5"

3 0

3 years ago

- 3x – 4y= 23x + 3y = -3 how to solve the system of equations by substituting​

- 3x – 4y= 23x + 3y = -3 how to solve the system of equations by substituting