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andriy [413]
3 years ago
9

Find the slope between the following points: (1,12) and (-7,-10)

Mathematics
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

11/4

Step-by-step explanation:

To find the slope of a line given two points, we use the formula

m = (y2-y1)/(x2-x1)

   = (-10-12)/(-7-1)

  =-22/-8

  =11/4

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Find the number,if 1/5 of it is 15
Nikitich [7]

Answer:

The number is 75

Step-by-step explanation:

Let x be the unknown number

of means multiply and is means =

1/5 x = 15

Multiply each side by 5

5 * 1/5 x = 5*15

x = 75

4 0
3 years ago
Read 2 more answers
Oakland Middle school has 128 6th graders, 121 7th graders and 135 8th graders. If there are 3 teachers per 32 students, how man
zepelin [54]

Answer:

36 Teachers in Total

Step-by-step explanation:

I would use Ratio.

Students: 128 + 121 + 135 = 384 total students

Teachers: Students

3 : 32

36 : 384

384 ÷ 32 = 12

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6 0
3 years ago
The cost of a babysitting on a cruise is 10 for the first hour, and 12 for each additional hour. If the total cost of baby Aaron
Sliva [168]

<u>Answer:</u>

5 hours  was Aaron at the sitter

<u>Explanation: </u>

Cost of baby sitting for the first hour: 10

Cost of baby sitting for additional hour= 12

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Since the cost of first hour is 10

Hence  the remaining cost after first hour

= 54-10

=48

Which means 1 hour  is consumed in the first hour

Now to calculate the remaining hours for every additional hour

= \frac{48}{12}

=4 hours

Hence the total hour Aaron was with the sitter

= 1 hour + 4 hours

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4 0
4 years ago
Jose scores 544 points in his math test. He needs at least 650 to get an A, write and solve the minimum number of points Jose ne
Tresset [83]

Answer:

The correct answer is x \geq 106, where x is the marks score by Jose in his remaining test, n.

Step-by-step explanation:

Jose scored 544 points in his math test.

Jose needs minimum of 650 points to get an A.

Let Jose scores x in the remaining test, n.

Jose needs to score an A. So, to reach 650 points, Jose need to score a minimum of 650 - 544 = 106 points.

Thus the value of x must be greater than of equal to 106, in his remaining test, n, to ensure that Jose gets an A.

⇒ x \geq 106.

3 0
3 years ago
The diameter of a spherical balloon that is being filled with air is increasing at the rate of 3 inches more than the time, t. W
bixtya [17]
It is given that the diameter of the sphere increases <span>at the rate of 3 inches more than the time, t. 
This means that:
at a certain time = t seconds
the diameter of the sphere will be equal to t + 3 

Based on this:
at t = 3 seconds
diameter of the sphere = t + 3 = 3 + 3 = 6 inches = </span><span>0.1524 meters
and radius of sphere = 0.5 x </span><span>0.1524 = 0.0762 meters

Volume of the sphere can be calculated using the following rule:
volume of sphere = (4/3) x pi x (radius)^3
Substituting in this equation, we can get the volume of the sphere at t = 3 seconds as follows:
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5 0
3 years ago
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