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mr Goodwill [35]
3 years ago
7

If 3 out of 24 students made an "A" what percent of students made an "A"?

Mathematics
1 answer:
Margarita [4]3 years ago
5 0
3 / 24 = 12.5% - hope this helps
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You can work a total of no more than 40 hours each week at your two jobs. Housecleaning pays $8 per hour and your sales job pays
tangare [24]

Answer:

C

Step-by-step explanation:

you can only work 40 or less hours per week but you must earn greater then or equal to $323.

8 0
1 year ago
On a snow day, Mason created two snowmen in his backyard. Snowman A was built to a height of 51 inches and Snowman B was built t
mr_godi [17]

Answer:

A ( t ) = -4t + 51

B ( t ) = -2t + 29

t < 11 hours ... [ 0 , 11 ]

Step-by-step explanation:

Given:-

- The height of snowman A, Ao = 51 in

- The height of snowman B, Bo = 29 in

Solution:-

- The day Mason made two snowmans ( A and B ) with their respective heights ( A(t) and B(t) ) will be considered as the initial value of the following ordinary differential equation.

- To construct two first order Linear ODEs we will consider the rate of change in heights of each snowman from the following day.

- The rate of change of snowman A's height  ( A ) is:

                           \frac{d h_a}{dt} = -4

- The rate of change of snowman B's height ( B ) is:

                           \frac{d h_b}{dt} = -2

Where,

                   t: The time in hours from the start of melting process.

- We will separate the variables and integrate both of the ODEs as follows:

                            \int {} \, dA=  -4 * \int {} \, dt + c\\\\A ( t ) = -4t + c

                            \int {} \, dB=  -2 * \int {} \, dt + c\\\\B ( t ) = -2t + c

- Evaluate the constant of integration ( c ) for each solution to ODE using the initial values given: A ( 0 ) = Ao = 51 in and B ( 0 ) = Bo = 29 in:

                            A ( 0 ) = -4(0) + c = 51\\\\c = 51

                           B ( 0 ) = -2(0) + c = 29\\\\c = 29

- The solution to the differential equations are as follows:

                          A ( t ) = -4t + 51

                          B ( t ) = -2t + 29

- To determine the time domain over which the snowman A height A ( t ) is greater than snowman B height B ( t ). We will set up an inequality as follows:

 

                              A ( t ) > B ( t )

                          -4t + 51 > -2t + 29

                                  2t < 22

                               t < 11 hours

- The time domain over which snowman A' height is greater than snowman B' height is given by the following notation:

Answer:                     [ 0 , 11 ]

   

8 0
2 years ago
What is the greatest common factor of 7, 15, and 21
inn [45]

Answer:

1 is correct Answer. Please mark me as brainlist answer.

6 0
1 year ago
Read 2 more answers
PLEASE help<br><br>vvvvvvvvv
stepan [7]

Answer:Lateral Surface Area is 672m^2

Step-by-step explanation:

Surface Area of Triangles= 8m*12m=96

Surface Area of Top & Bottom Rectangles= 12m*18m*2=432m^2

Surface Area of Middle Triangle=12m*18m=216

Total Surface Area= 216+432+96

672m^2

5 0
3 years ago
Sqrt(x+7) -1=x<br><br><br> yo what
MAVERICK [17]

Hi

\sqrt{(x+7)   -1 = X

Let's square the whole thing  

so we have :    x+7 +1 = x²

                         x² +x+7 +1 = 0

                         x²+x+8 = 0

       

no easy way to see a common factor so, let 's resolve by using discriminate.  

Δ = 1-4*1*8

Δ = 1 -32

Δ = -31

as Δ  ≤ 0 , there is no Real answer to your equation  

however , if you need we can find imaginary solutions. Just ask in commentaries

4 0
3 years ago
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