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2 years ago

(5,6) and (−5,12) what is the rate of change??

Mathematics

2 answers:

Misha Larkins [42]2 years ago

6 0

Answer:

The rate of change is -0.6

Step-by-step explanation:

Given

$(x_1,y_1) = (5,6)$

$(x_2,y_2) = (-5,12)$

Required

Determine the rate of change

The rate of change means the slope (m) and it is calculated as thus:

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

$m = \frac{12-6}{-5-5}$

$m = \frac{6}{-10}$

$m = -\frac{6}{10}$

Simplify the fraction

$m = -\frac{3}{5}$

$m=-0.6$

<em>The rate of change is -0.6</em>

Veseljchak [2.6K]2 years ago

4 0

Answer:

- 0.6

Step-by-step explanation:

Start point: (5,6)

End point: (-5,12)

rate of change = (12-6) / (-5-5) = 6/-10 = - 3/5 = - 0.6

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3/7 of 8th graders play sports. is 3/5 of the 8th graders that play sports are boys, what fraction of the 8th graders are boys

Svetach [21]

Answer:

$\dfrac{9}{35}$ is the fraction of 8th graders who are boys.

Step-by-step explanation:

Let total number of 8th graders = $x$

Given that, $\frac{3}{7}$ of 8th graders play sports

$\Rightarrow$ 8th graders who play sports = $\frac{3}{7} \times x$

Also, Given that, $\frac{3}{5}$ of 8th graders that play sports are boys

Number of 8th graders that play sports, and are boys = $\frac{3}{5} \times \text{Number of 8th graders who play sports}$

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Hence, the answer is:

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2 years ago

A car dealership pays a wholesome price of $12,000 to purchase a vehicle. The car dealership wants to make a 32% profit. The car

cestrela7 [59]

Answer:

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Step-by-step explanation:

Lets take this one part at a time.

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I do want to mention that there is a chance the 32% might also be accounting the bonus. So in other words the dealership spent 12000 for the car then however much in paying the bonus, and they want to make a 32% profit on both of these combined. I do not think that is what it is asking for, but I wanted to mention it.

Anyway, with a sales price of $15,840 it says the bonus is 6.5% of that. to find that just do the multiplication .065 * 15840 = 1029.60. So this is the bonus normally.

Now the question says the salesperson offers a 10 percent discount. This changes the sales price (by 10%) and the bonus they earn. let's calculate both.

First 10% discount of the sales price is .9*15840 = 14,256

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