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2 years ago

Twice the difference of a number and three is negative two. Find the number

Mathematics

1 answer:

lianna [129]2 years ago

8 0

<h3>Answer:</h3>

$x=2$

<h3>Explanation:</h3>

Represent the sentence mathematically. $2(x-3)=-2$

Distribute. $2x+(2*-3)=2x-6=-2$

Add 6 on both sides. $2x=-2+6=4$

Divide both sides by 2. $x=2$

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Step-by-step explanation:

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1 year ago

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MariettaO [177]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's find out the gradient (Slope " m ") of line q ;

$\qquad \sf \dashrightarrow \:m = \dfrac{y_2 - y_1}{x_2 - x_1}$

$\qquad \sf \dashrightarrow \:m = \dfrac{4 - 0}{0 - 1}$

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Now, since we already know the gradient let's find of the equation of line by using its Slope and one of the points using point slope form of line :

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1 year ago

What is the constant of proportionality in the equation?<br>y=5x<br>0<br>1<br>4 or <br>5

Ann [662]

Answer:

hope it helps...

Step-by-step explanation:

The value of the constant of proportionality is k=5k=5

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=ky/x=k or y=kxy=kx

The value of the constant k is equal to the value of the slope

In this problem we have

y=5xy=5x ------> is a linear direct variation

The slope is m=5m=5

therefore

The value of the constant of proportionality is k=5k=5

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2 years ago

Write an expression for the following situation and solve. Mr. Simms bought 20 pencils. He used 1/4 of the pencils and then gave

Aleonysh [2.5K]

Hi!
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2 years ago