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3 years ago

Tickets to the end of year carnival are 18$ for 4 tickets what is the cost of 9 tickets

Mathematics

2 answers:

pogonyaev3 years ago

5 0

Answer:

40.5

Step-by-step explanation:

This is divied 18 and 4

= 4.5

Then 4.5*9=40.5

melamori03 [73]3 years ago

3 0

Answer:

40.50 for 9 tickets

Step-by-step explanation:

We can use a proportion to solve

18 dollars x dollars

------------- = ---------------

4 tickets 9 tickets

Using cross products

18 *9 = 4x

162 = 4x

Divide by 4

162/4 = 4x/4

40.50 =x

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3 years ago

A pair of shoes is on sale for $66.00. This is 75% of the original price. What was the original price?

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2 years ago

The table below represents a function. Which of the following equations could be its function rule?

worty [1.4K]

Answer:

$y=2x-2$ is the required equation.

Therefore, the second option is true.

Step-by-step explanation:

We know that the slope-intercept form of the line equation of a linear function is given by

$y=mx+b$

where m is the slope and b is the y-intercept

Taking two points (0, -2) and (1, 0) from the table to determine the slope using the formula

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:-2\right),\:\left(x_2,\:y_2\right)=\left(1,\:0\right)$

$m=\frac{0-\left(-2\right)}{1-0}$

$m=2$

substituting the point (0, -2) and the slope m=2 in the slope-intercept form to determine the y-intercept i.e. 'b'.

$y=mx+b$

$-2 = 2(0)+b$

$-2=0+b$

$b=-2$

Now, substituting the values of m=2 and b=-2 in the slope-intercept form to determine the equation of a linear function

$y=mx+b$

$y=2x+(-2)$

$y=2x-2$

Thus, $y=2x-2$ is the required equation.

Therefore, the second option is true.

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2 years ago