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
Maurinko [17]
3 years ago
5

Lúcia is using energy at a rate of 420 kilocalories (kcal) per hour (h) ice skating.

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

7000 cal/min

Step-by-step explanation:

It is mentioned that, Lucia is using energy at a rate of 420 kilo calories per hour ice skating

We know that,

1 kilo calories = 1000 calories

Using unitary method :

420 kilo calories = 420,000 calories

Also,

1 hour = 60 minutes

In this case, Lucia is using energy per 60 minutes =  420,000 calories. So,energy used by her per minute is :

E=\frac{420000}{60} =7000 calories

Hence, Lucia is using 7000 calories per minute.

Credit to handgunmaine: https://brainly.in/question/13030745

You might be interested in
Integer (-1) c (+5) =
LenKa [72]
-13.5914091423 is what I got from a calculator.
4 0
2 years ago
Read 2 more answers
Ashley has 500 songs in his music player. Every week he adds 10 songs to his collection. How many songs will he have in his musi
Ad libitum [116K]
700 because 10 times 20 is 200 and 500 plus 200 is 700.
5 0
3 years ago
Read 2 more answers
The demand function of blankets at COMESA is given by the equation P=60-2Q find the units of good Q ,when P=12 and use integrati
lions [1.4K]

Answer:

a. 24

b. 864

Step-by-step explanation:

a. The demand function is:

P = 60 - 2Q

When P = 12:

12 = 60 - 2Q

2Q = 60 - 12

2Q = 48

Q = 48/2 = 24

b. Consumer surplus is given as the integral of Demand function:

CS = \int\limits {[P(Q) - (p)(Q)] \ dQ\\

This implies that:

CS = \int\limits {60 - 2Q} \, dQ\\\\CS = 60Q - Q^2\\\\CS = (60 * 24) - 24^2\\\\CS = 1440 - 576\\\\CS = 864

7 0
3 years ago
The ratio of red marbles to blue marbles is 3 to 7 she has a total of 80. how many red and blue marbles
atroni [7]
This means that 3/10 are red and that 7/10 are red, so 7/10(80) =  56blue marbles and 3/10(80)= 24red marbles
5 0
3 years ago
There are 23 countries in North America, 12 countries in South America, 47 countries in Europe, 44 countries in Asia, 54 countri
Eduardwww [97]

Using probability concepts, it is found that:

1. P(A) = 0.2268.

2. 100%.

3. 0%.

-------------------------

A probability is the <u>number of desired outcomes divided by the number of total outcomes.</u>

Item 1:

  • 44 countries in Asia.
  • Total of 23 + 12 + 47 + 44 + 54 + 14 = 194 countries.

Then:

P(A) = \frac{44}{194} = 0.2268

Itens 2 and 3:

  • The complement of an event is it's negation.
  • Either an event happens, or it does not, that is, either the event happens, or it's complement does, thus the sum of the probabilities of an event and it's complement is of 100%.
  • From the above bullet point, there is also a 0% probability that neither an event nor its complement happens.

A similar problem is given at brainly.com/question/24297482

7 0
2 years ago
Other questions:
  • Don't know how to start on this problem.
    7·1 answer
  • The graph of the function f(x) = (x + 2)(x + 6) is shown below. Which statement about the function is true? The function is posi
    10·1 answer
  • Which expression is equivalent to
    7·2 answers
  • Margie's car can go 32 miles on a gallon of gas, and gas currently costs $4 per gallon. How many miles can Margie drive on $20 w
    12·1 answer
  • Can i get a good answer as to how to solve this
    13·1 answer
  • Pls someone plsss help meeeee
    13·2 answers
  • In Ms. Perron’s class, 60% of the students are boys. There are 26 students in the class. What is the total number of boys in Ms.
    5·1 answer
  • Pls help ill mark brainliest
    13·2 answers
  • Suppose that 2 were subtracted from each of the values in a data set that
    13·1 answer
  • for p(x)= 192 + 21x^3 + 54x^2 - 3x^4 - 264x, use synthetic substitution to evaluate p(1), p(-2), and p(8)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!