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
Nimfa-mama [501]
3 years ago
11

What is the average metabolic rate for a boiler maker who is performing maintenance on the boiler during shutdown and works for

3 hours at 3.5 kcal/min, takes a break for 30 min in a sitting position (metabolic rate = 0.3 kcal/min), resumes working on the outside of the boiler for 3.5 hours (metabolic rate = 2.5 kcal/min), then performs administrative work in the area for 1 hour (metabolic rate = 0.4 kcal/min)?
Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer:

The average metabolic rate for the boiler maker during the 8 hours is 2.475 kcal/min.

Step-by-step explanation:

We can calculate the average as a weighted average.

This weighted average can be expressed as:

\bar M=\dfrac{\sum t_i\cdot M_i}{\sum t_i}=\dfrac{3*3.5+0.5*0.3+3.5*2.5+1*0.4}{3+0.5+3.5+1}\\\\\\\\\bar M=\dfrac{19.8}{8}=2.475

being ti the hours on each task or break, and Mi the metabolic rate for each task or break.

The average metabolic rate for the boiler maker during the 8 hours is 2.475 kcal/min.

You might be interested in
What's the position of nine in the number 932,805
zheka24 [161]
It would be in the
Hundred thousands
5 0
3 years ago
Read 2 more answers
Ava, Kate, and Jin bring all the food to a picnic. Ava brings 34, Kate brings 16, and Jin brings 112. Enter a numerical expressi
juin [17]

Answer:

Step-by-step explanation:

Given that:

Ava bring 34 food to the picnic

Kate bring 16 food to the picnic

JIn brings 112 food to the picnic

To enter these digits by applying equivalent fractions with a denominator of 12;

Their respective numerical expression is:

Ava = \dfrac{34}{12}

Ava brought 2 \dfrac{5}{6} food to the picnic

Kate = \dfrac{16}{12}

Kate brought 1 \dfrac{1}{3} food to the picnic

Jin = \dfrac{112}{12}

Jin brought 9 \dfrac{1}{3} food to the picnic

6 0
3 years ago
Read 2 more answers
An office store pays a whole price of $120 for a laser printer and sells it for $174. What is the pecent mark up
Advocard [28]

Answer:

its by 54%

Step-by-step explanation:

because it is raising the price by making money by 54%. and that its using the calculator in any way.

8 0
2 years ago
Use the distributive property to rewrite 2(8+x) then simplify
babymother [125]
16+2x

You can’t simplify anymore since there’s no other variable or whole number.
8 0
3 years ago
Read 2 more answers
Find the minimum and maximum values for the function with the given domain interval.
AlexFokin [52]

Step-by-step explanation:

e^(x+h) is always larger than e^x.

so the minimum function value in that interval is e⁴.

and the maximum function value in that interval is e⁶.

e⁴ = 54.59815003... ≈ 54.60

e⁶ = 403.4287935... ≈ 403.43

8 0
2 years ago
Other questions:
  • Diana invested $3000 in a saving account for 3 years. she earned $450 in interest over the time period. what interest rate did s
    5·2 answers
  • HALP PLZZZ. First to respond gets something
    12·2 answers
  • (a-12)x = a+8 in the equation to the left, a is a constant. if the equation has no solutions, what is the value of a?
    11·1 answer
  • Factoring has nothing to do with finding the least common denominator.
    9·1 answer
  • The vertex of this parabola is at (5, 5). when the x-value is 6, they-value is -1. what is the coefficient of the squared expres
    13·2 answers
  • Y-2>1 ON A NUMBER LINE
    6·1 answer
  • Annie went bowling. It cost $3 to rent shoes, plus $4 for every game that she played. She spent $11 total. How would you represe
    11·2 answers
  • Use the expression below to answer the following question:
    6·2 answers
  • Last week maria ran 16.4 miles more than Kathryn. Maria ran 30 miles. How many did Kathryn run ?​
    15·2 answers
  • Find the surface area of the cube
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!