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Genrish500 [490]
3 years ago
6

Find the slope of the line that passes through (3, 7.5) and (7, 17.5).​

Mathematics
1 answer:
aalyn [17]3 years ago
7 0

Answer:

5/2

Step-by-step explanation:

The formula for slope can defined as y2-y1/x2-x1. So we'll take 17.5-7.5 which is 10. 7-3 is 4. Now we have 10/4. This can be simplified to 5/2.

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The population of a city in 2005 was 18,000. By 2010, the city's population had grown to 32,800. If the population growth follow
kotykmax [81]

Answer:

The projected population for 2015 is around 83,600 people.

Step-by-step explanation:

If between 2005 and 2010, the population grew by 32,800 people, and the model of this problem is linear. Then that means in another 5 years, another 32,800 people would populate the area. Hopefully this makes sense!

3 0
3 years ago
The Yu family and the Sainz family went on vacation together and each family leased a car. The leasing company charged a flat re
Dafna11 [192]

Answer:

y = 0.15x+77 is the equation linear connecting total cost y and miles driven x

Step-by-step explanation:

Given that the leasing company charged a flat rental fee for the week, plus a charge for each mile driven.

Let flat rental fee be c and cost per mile driven = m and miles driven = x

Total cost =y

Then y = mx+C is the linear equation.

to find m and c, we use the fact that y =110.30 when x = 222

i.e. 110.30 = c+222x

and similarly 99.05 = c+147x

Subtract to eliminate c

11.25 = 75 x

0.15 =x

Substitute in I equation

110.30 = c+222(0.15)

c = 77

Hence y = 0.15x+77 is the equation linear connecting total cost y and miles driven x

7 0
3 years ago
casey ran a 75 meter race in 10 seconds her distances at certain times during the race are shown in the table . what is the doma
Troyanec [42]
The domain of the graph is everything x is allowed to equal. Parentheses are used to show that x can be everything up to, but not including that number. Brackets are used to show x can be anything up to, and including, that number. The comma between the two numbers indicates that x can be anything between those two numbers.

Here, the time goes on the x axis and the distance will go on the y axis.
Time: 0 1 2 3 4 5 6 7 8 9 10
<span>Distance: 0.0 5.5 12.0 20.0 28.5 36.0 44.0 56.5 64.0 75.0
</span>
Since we are dealing with the domain, we really only need to focus on the time.
Time: 0 1 2 3 4 5 6 7 8 9 10

From this, we see that the values go from 0 to 10. This means that x can be anything from 0 to 10. Because there are y values that correlate with the numbers 0 and 10, we know that the domain will include 0 and 10. This indicates we must use brackets. 

Knowing all of this information, we can now write our domain as:
[0, 10]
7 0
3 years ago
Given the following statements, which is the best definition...
pishuonlain [190]

Answer:

Anything you own that has value and can be turned into cash.

Step-by-step explanation:

Unless there is a passage that refers to the word, the second option would be the best answer due to Google's online dictionary.

7 0
3 years ago
If you had taken the PSAT test can you tell me if it is hard, what topic is on it (especially math) and what happens basically?
il63 [147K]

Answer:

Its relly hard trust me!

Step-by-step explanation:

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2 years ago
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