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NARA [144]
3 years ago
15

The table compares x, the number of minutes of television Sam watched each day, to y, the number of minutes she spent exercising

. The function y = –0.78x + 95 models the data in the table.
A 2-column table with 5 rows. The first column is labeled minutes of television viewing, x with entries 45, 65, 120, 22, 80. The second column is labeled minutes of exercising, y with entries 60, 45, 5, 80, 25.

Which is the best prediction for the number of minutes of exercising Sam will do if she spends 30 minutes watching television that day?
45 minutes
72 minutes
83 minutes
118 minutes
Mathematics
2 answers:
andrezito [222]3 years ago
7 0

The answer is 72 minutes. Hope this helps!

Olegator [25]3 years ago
6 0
The answer is 83minutes hope that helped
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Ilia_Sergeevich [38]

Answer:

157.0796

Step-by-step explanation:

Volume for cone is (pi x r^2 x h) / 3

5 0
3 years ago
Read 2 more answers
Helps with this math problem please
olasank [31]
First we are going to express both equation in terms of  y to compare their slopes:
For our first equation:
-x=1-y
-x-1=-y
y=x+1
For our second equation:
-1+y=x+2
y=x+3
So now we have our system of equations in terms of y:
\left \{ {{y=x+1} \atop {y=x+3}} \right.
Notice that the slope, the coefficient of x, in both equations is the same: 1, and if tow linear equations have the same slope, they are parallel.

We can conclude that we can classify the system of equations as parallel.
3 0
3 years ago
3. A restaurant bill of $350 was paid using $5 notes and $50 notes. The total number of
Sonbull [250]

The number of $5 notes is 10 and $50 notes is 6

Step-by-step explanation:

Let x be the number of $5 notes

and

y be the number of $50 notes

Then according to given statements

"The total number of notes used was 16."

x+y=16    Eqn 1

"A restaurant bill of $350 was paid using $5 notes and $50 notes."

5x+50y=350       Eqn 2

From\ Eqn\ 1\\x+y=16\\y=16-x\\Putting\ y=16-x\ in\ equation\ 2\\5x+50(16-x)=350\\5x+800-50x=350\\-45x+800=350\\Subtracting\ 800\ from\ both\ sides\\-45x+800-800=350-800\\-45x=-450\\Dividing\ both\ sides\ by\ -45\\\frac{-45x}{-45}=\frac{-450}{45}\\x=10

Putting x=10 in equation 1

10+y=16\\y=16-10\\y=6

So,

The number of $5 notes is 10 and $50 notes is 6

Keywords: Linear Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/2385771
  • brainly.com/question/2386054

#LearnwithBrainly

3 0
3 years ago
I have no idea what subject this belongs to but.. please help, i will mark brainliest
MakcuM [25]

Answer:

Try Social Studies.

3 0
3 years ago
PLEASE HELP !
scZoUnD [109]
It will be 33/74
77-41 = 33 and 33/74 is the correct fraction for the cars that are NOT boxcars
5 0
3 years ago
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