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Maru [420]
3 years ago
12

I need to know the value of x

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Hello!

To solve we can just divide both sides by 3/4.

x=-4

I hope this helps!

Inga [223]3 years ago
3 0

To solve the equation 3/4x = -3, we need to get the variable x by itself on the left side of the equation.

To get rid of the coefficient of 3/4 on the variable x, we need to perform the inverse operation. This means because 3/4 and x are being multiplied together, we must divide both sides by 3/4 to solve the equation.

3/4x = -3

(3/4x)/(3/4) = -3/(3/4)

x = -4

Therefore, your answer is x=-4.

Hope this helps!

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gulaghasi [49]

Answer:

N(h) = 2h + 6

Step-by-step explanation:

A model of the number of people that Denis can invite to his party:

N(x) = x/25.............(1)

Where x = amount of money saved

Amount of money saved can be modeled by the equation:

M(h) = 50h + 150...........(2)

In the above model, h = number of overtime hours

M(h) = amount of money saved = x

Therefore equation (1) can be re - written as:

N(x) = M(h)/25.................................(3)

Substituting equation (2) into equation (3)

N(h) = \frac{50h + 150}{25} \\N(h) = \frac{50h}{25} + \frac{150}{25} \\N(h) = 2h + 6

Find an explicit expression that models the number of people that Denis can invite to his party if he worked h  overtime hours this week can be expressed as:

N(h) = 2h + 6

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4 years ago
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4 years ago
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vitfil [10]

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3 years ago
Solve the system by substitution.
kirill [66]
<h2>Answer:</h2>

x = 1

y = 1

<h3>Step-by-step explanation:</h3>

y=-3x+4\\ y=x

Substitute into one of the equations

-3x+4=x

Rearrange variables to the left sider of the equation

-3x-x=-4

Combine like terms

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Divide both sides of the equation by the coefficient of variable

x=\frac{-4}{-4}

Determine the sign for multiplication or division

x=\frac{4}{4}

Cross out the common factor

x=1

Substitute into one of the equations

y=1

The solution of the system is

\left \{ {{x=1} \atop {y=1}} \right.

<em>I hope this helps you</em>

<em>:)</em>

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Answer:

A

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