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3 years ago

A used-boat dealership buys a boat for $2900 and then sells it for $4500. What is the percent increase?

1 answer:

3 0

Alright, so we have the difference = 4500-2800=1700. To find the percent increase, we do 1700/2800=around 0.61 = around 61% percent. Hope I helped! ☺☼

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Take west to be the positive direction. The height of a sloped roof above the place where you stand is 12

den301095 [7]

Given:

Take west to be the positive direction. The height of a sloped roof above the place where you stand is 12 feet. If you move 3 feet west, the height is 10 feet.

We need to determine the slope.

Let x denote the standing place.

Let y denote the height.

Writing the given as coordinates, we get;

(0,12) and (3,10)

Slope:

The slope can be determined using the formula,

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

Substituting the coordinates (0,12) and (3,10), we have;

$m=\frac{10-12}{3-0}$

$m=\frac{-2}{3}$

Thus, the slope is $m=-\frac{2}{3}$

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3 years ago

How many different committees can be formed from 6 teachers and 37 students if the committee consists of 4 teachers and 4 stude

Anna [14]

Answer:

The committee of 8 members can be selected in 990,675 different ways.

Step-by-step explanation:

The order in which the teachers and the students are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

4 teachers from a set of 6.

4 students from a set of 37.

Then

$T = C_{6,4}C_{37,4} = \frac{6!}{4!2!} \times \frac{37!}{4!33!} = 990675$

The committee of 8 members can be selected in 990,675 different ways.

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3 years ago

Graph the equation y=-2x+1

Fofino [41]

Start by plotting the y-intercept at (0,1).

From that point, count "up 2, right 1" to get a second point on your graph.

If needed repeat that "up 2, right 1" from that second point to get a third point.

Draw the line that connects these 2 or 3 points.

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3 years ago

The value of cosine is undefined at pi and 2pi radians. TRUE FALSE

Naddika [18.5K]

Answer: False

Step-by-step explanation:

False, the value of cosine at pi and 2pi is equal to -1 and 1 respectively. You can test this by using the pi circle or a calculator. Let pi = 180 degrees. Cosine is always defined and alternates between 1 and -1.

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3 years ago

Dan drove 737 miles in 11 hours. At the same rate, how many miles would he drive in 13 hours?

kari74 [83]

Answer:

871

Step-by-step explanation:

737 divided by 11 is 67, so thats how many miles he drives per hour

67 times 13 is 871

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3 years ago

Read 2 more answers

A ​used-boat dealership buys a boat for ​$2900 and then sells it for ​$4500. What is the percent​ increase?

A used-boat dealership buys a boat for $2900 and then sells it for $4500. What is the percent increase?