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horrorfan [7]
3 years ago
5

A class has a total of 135 absences over 18 weeks. what is the mean number of absences per week?

Mathematics
1 answer:
Butoxors [25]3 years ago
5 0
135 divided by 18 is 7.5 so I would guess 7 each week and maybe possibly 8 on some weeks
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The equation F=9/5C+32 relates temperature measured in degrees Celsius, C, to degrees Fahrenheit, F. Determine wether there is a
Rama09 [41]

Answer: yes they have a proportional relationship

Step-by-step explanation:

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

Step one : let us test say c=1

F=9/5*1+32

F=9/5+32

F=1.8+32

F=33.8

Say c=2

F=9/5*2+32

F=9/10+32

F=0.9+32

F=32.9

Observe that as c increases

F reduces Hence they have a proportional relationship

-<em><u>samuelonum1</u></em>-

Not my answer/ please give brainlist

4 0
3 years ago
Please help me I'm desperate!
Alexus [3.1K]
R = ((3V)/((pi)(h^2))+h)/3
6 0
3 years ago
What is 0.4% of $100
Anni [7]
0.4%, turn it into a decimal, which is 0.004
0.004*100= 0.4
8 0
3 years ago
Read 2 more answers
Simplify 3(7t-5) - 2t = 4​
Inga [223]

Answer:

Step-by-step explanation:

3(7t - 5) - 2t = 4

3*7t - 3*5 - 2t = 4

21t  - 15   - 2t = 4          {combine like terms}

21t - 2t - 15     = 4

         19t - 15 = 4          {Add  15 to both sides}

            19t    = 4 + 15

            19t     = 19    {Divide both sides by 19}

                   t = 19/19

t = 1

4 0
3 years ago
A system of equations is graphed on the coordinate plane. y = -6x - 3, y = -x + 2, what is the solution of equations?
UkoKoshka [18]

(x, y ) → (- 1, 3 )

The solution to the system of equations is the point of intersection of the 2 lines

From the graph, that is (x, y ) → ( - 1, 3 )

We can confirm by solving algebraically

Since both equations express y in terms of x we can equate the right sides

- x + 2 = - 6x - 3 ( add 6x to both sides )

5x + 2 = - 3 ( subtract 2 from both sides )

5x = - 5 ( divide both sides by 5 )

x = - 1

substitute x = - 1 into either of the 2 equations for y-coordinate

y = - x + 2 = 1 + 2 = 3

solution is (x, y ) → (- 1, 3 )


8 0
3 years ago
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