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
7. What is the force of tension in a rope that spins a 250 g object in a vertical circle with a radius of 50 cm if the
Phantasy [73]
Subtract 250-50 which equals 200 and then multiply it by 3 which is 600
4 0
3 years ago
I need help asap pllz help !!​
swat32

Answer:

14/28

Step-by-step explanation:

14/28 reduces down to 1/2

6 0
3 years ago
Triangle ABC is translated 3 units to the left and downward 10 units to form triangle A'B'C', then dilated by a factor of 2 to f
11Alexandr11 [23.1K]

Triangle A"B"C" are similar triangles to triangle ABC and all corresponding angles are congruent. Also, triangle A"B"C" is twice the size of triangle ABC.

<h3>What is transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformations are<em> reflection, rotation, translation and dilation.</em>

Translation is the movement of a point either <em>up, left, right or down</em> in the coordinate plane.

Triangle ABC is translated 3 units to the left and downward 10 units to form triangle A'B'C', then dilated by a factor of 2 to form triangle A''B''C''.

Hence:

Triangle A"B"C" are similar triangles to triangle ABC and all corresponding angles are congruent. Also, triangle A"B"C" is twice the size of triangle ABC.

Find out more on transformation at: brainly.com/question/4289712

#SPJ1

8 0
2 years ago
Anita has 1 ¼ as much money as Tonya , and Tonya has ⅔ ( two-
Debora [2.8K]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
The graph of f(x) = x3 − 7x − 6 is shown. Based on the graph, what are all of the solutions to f(x) = x3 − 7x − 6? x = −6 x = −2
pogonyaev
F(x)=x^3-7x-6  Since I don't have the graph and this is not a perfect cube, I will have to rely on Newton :P

x-(f(x)/(dy/dx))

x-(x^3-7x-6)/(3x^2-7)

(2x^3+6)/(3x^2-7), letting x1=0

0, -6/7, -.988, -.9999, -.99999999999, -1

(x^3-7x-6)/(x+1)

x^2 r -x^2-7x-6
-x   r  -6x-6
-6   r  0

(x+1)(x^2-x-6)=0

(x+1)(x-3)(x+2)=0

x= -2, -1, 3 


4 0
3 years ago
Read 2 more answers
Other questions:
  • True false a line parallel to one side of a triangle and intersects the other two sides divides the other two sides proportional
    10·2 answers
  • Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1
    10·1 answer
  • What is the circumference of the circle? r=6.4
    7·1 answer
  • Plssss help I will die:(
    13·1 answer
  • |-3 + 15| what is the sum (answer) ? I think it is 12 but my friend thinks it is 18. Who is right?
    10·2 answers
  • How did u get the area of the trapezoids tho.
    8·1 answer
  • Can anyone help me answer this?
    13·1 answer
  • Please give me the correct answer.Only answer if you're very good at math.Please use the Pythagorean Theorem formula which is a^
    11·1 answer
  • Margaret is saving money for her
    15·1 answer
  • Which of the following notes is G?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!