3. What is always true when two whole

Help plz (please don’t answer saying A or B. That answer makes 0 sense...stop) thx

Anuta_ua [19.1K]

Hey there! :D

Think of it this way. The question is saying that the text messages are all equally the same value, or expense. If you were to divide 16 by $3.20, you would find that each text was the same amount to send. That the input (the number of text messages) is directly related in the same pattern to the output (the cost of the text messages).

A. What is the constant of proportionality in this proportional relationship?

A constant of proportionality is what makes x directly relate in proportion to y. We are trying to find the variable that makes y= (?)x

16y= 3.20x

Divide both sides by 16.

y=0.20x or y=0.2x

The constant is the value that goes with the variable. .20 is the constant. '

B. Write an equation to represent this proportional relationship. Make sure to define the variables you use.

We already know that 0.20 is the constant number. In other words, every text message cost $.20.

Text messages= T cost= C

C= T(0.20)

For every text message (T), it is multiplied by 0.20, to make the accurate cost (C).

I hope this helps!
~kaikers

8 0

3 years ago

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Three out of five students wore green on st Patrick's day what percent of the stundents wore green

Katen [24]

3/5 as a percentage would be 60%.

6 0

3 years ago

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Identify the property shown <br> (3x5)x10=3x(5x10)

yarga [219]

Asociative property of multiplication

7 0

4 years ago

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A line passes through (3, -2) and (6, 2). a. Write an equation for the line in point-slope form. b. Rewrite the equation in stan

koban [17]

Answer:

(a)

Given: A line passes through the points (3, -2) and (6, 2)

Point slope form: An equation of line passing through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by:

$y -y_1=m(x-x_1`)$ .....[1] where m is the slope of the line.

Calculate first the slope of the line:

Slope(m) = $\frac{y_2-y_1}{x_2-x_1}$

Substitute the given points;

$m = \frac{2-(-2)}{6-3}=\frac{2+2}{3} =\frac{4}{3}$

Substitute the value of m in [1] ;

$y - (-2) = \frac{4}{3}(x-3)$

$y+2=\frac{4}{3}(x-3)$ ......[1]

therefore, the equation of line in point slope form is, $y+2=\frac{4}{3}(x-3)$

(b)

to find the standard form of the equation [1]

Multiply both sides by 3 in [1] we get;

$3(y+2) = 4(x-3)$

using distributive property; $a\cdot (b+c) = a\cdot b + a\cdot c$

3y + 6 = 4x -12

Subtract 3y to both sides we get;

3y + 6 -3y = 4x - 12 - 3y

Simplify:

6 = 4x - 3y -12

Subtract 6 from both sides we get;

0 = 4x - 3y -12-6

Simplify:

4x - 3y - 18 =0

Therefore, the standard form of the equation is; 4x - 3y - 18 =0

7 0

3 years ago

A carpenter is framing an opening in a wall to hang a rectangular door. Which properties must the door frame have to ensure that

tigry1 [53]

A) The top and bottom are parallel.B)The top and right side form a right angle.D)The left side and right side are parallel.E)The left side and bottom form a right angle.
Are correct just took the assignment and got it right.

5 0

4 years ago

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