1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreyandreev [35.5K]
3 years ago
9

"Marina burns calories at a rate of 15 calories per minute when running and 6 calories per minute when walking. Suppose she exer

cises for 60 minutes by running for r minutes and walking for the remaining time. The expression 15r+6(60-r) represents the calories burned. What does each term represent?"
Mathematics
2 answers:
Mars2501 [29]3 years ago
4 0

Answer:

Step-by-step explanation:

Marina burns calories at a rate of 15 calories per minute when running.

Let she runs for r minutes.

Therefore, number of calories burnt in r minutes running = 15r calories

Now it is given that she exercises for 60 minutes, in which she runs for r minutes so remaining time for walking will be = (60 - r) minutes

Calories burnt in walking is given as 6 calories per minute

Therefore, calories burnt in (60 - r) minutes walking= 6(60 - r) calories.

Finally total calories burnt in exercising for 60 minutes will be represented by [60r + 6(60 - r)] calories.

Schach [20]3 years ago
3 0

15r means that she burns 15 calories per min, for as many mins as she ran.  EG: if she ran for 10 min, then she burned 150 cals.  The other one I'm not so sure.

You might be interested in
What of the following exponential functions is represented by the data in the table?
patriot [66]

Answer:

f(x) = ( 1/3) ^ (x)

Step-by-step explanation:

The function is

f(x) = (1/3) ^ (x)

When x = 1  f(x) = 1/3

when x=2    f(x) = 1/9

When x = -1  f(x) = ( 1/3) ^ -1 = 3/1 =3

7 0
2 years ago
What is the length of the line to the nearest sixteenth of an inch
Inga [223]

the length of the line is 2 1/16

8 0
3 years ago
Which vehicle should I buy to get the best gas mileage (the most miles for each gallon of gas)?
Ronch [10]

Answer:

vehicle c

Step-by-step explanation:

vehicle d is at 180 with 6 gallons and vehicle c is at 120 with 2 gallons. kinda common sense

5 0
3 years ago
Which line is the graph of y = 1/2 x + 2?<br><br> line a<br> line c<br> line d<br> line b
kirill115 [55]

Answer:

the answer is line A

Step-by-step explanation:

:3 why do i have to write at least 20 characters :/

but Hope its correct

4 0
2 years ago
Read 2 more answers
For what values of x is the following equation satisfied : 3x+9 = 21+7x ?
olya-2409 [2.1K]
First of all, the first power of 'x' is the highest power in the whole equation,
so we only expect one solution.

You said that <span><u>3x+9 = 21+7x </u>

Subtract 3x from each side:

9 = 21 + 4x

Subtract 21 from each side:

-12 = 4x

Divide each side by 4 :

<u>-3 = x </u>
</span>


4 0
3 years ago
Read 2 more answers
Other questions:
  • Which functions are nonlinear? Select all that apply.
    9·1 answer
  • Joe the trainer has two solo workout plans that he offers his clients: Plan A and Plan
    15·1 answer
  • Array with 2 rows of 5
    14·1 answer
  • In the diagram, think of each segment in the figure as part of a line.
    5·1 answer
  • PLEASE HELP MEEEEEEEEEE
    9·1 answer
  • What is 2,034,627,105 rounded to the nearest ten thousand
    6·1 answer
  • 3x=6/7 what is the solution ?
    12·2 answers
  • Simplify this expression (2^3)^3 - (10 - 6)^3 . 4^-5
    9·1 answer
  • What to say say back to some if they say no one asked you?
    13·1 answer
  • Help!! I need these requirements for my argumentive essay topic "Do violent video games make people more likely to be violent in
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!