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
Dmitry_Shevchenko [17]
3 years ago
6

Please help!

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
6 0
To answer the first problem you are going to need to solve the equation for M (BMI). In order to do this you need to rearrange the variables h and w to one side of the equation, and M by itself on the other side. After doing this your equation should look like:
M = (0.45*w) / ((h / 40)^2)

For part 2 we must first solve for Chris' height so that we can find his healthy range. You should use the original equation for this. You should get 73.0105 inches as an answer. Now we must solve for his weight using 24.9 as the upper limit of the healthy BMI range as well as his height. You need a new formula solving for w. I am not going to put this formula here but I will just solve for W.
His healthy weight in pounds turns out to be 184.348 pounds. In order to get into this range, he must lose 211 - 184.348 = 26.6524 pounds. Since it asks how many whole pounds he must lose you should put 27 pounds as your answer.
Hope this helped!
marusya05 [52]3 years ago
3 0
1. h=40\sqrt{\frac{.45w}{M}}\Rightarrow\frac{h^2}{1600}=\frac{.45w}M\Rightarrow M=\frac{720w}{h^2}

2. his BMI has to be reduced by 28.5-24.9=3.6

We must thus solve \frac{720w}{h^2}=3.6 thus \frac{720w}{h^2}=3.6h^2/720=.005h^2. We can know his height using the first formula : h=40\sqrt{\frac{.45w}{M}}=40\sqrt{\frac{.45*211}{28.5}}\approx73.01

Hence he must lose (73.01)^2*.005\approx26.6 -> 27 pounds.

We check our result :  720*(211-27)/(73.01^2)\approx24.85
You might be interested in
Solve for y. 9x+5y=7 <br>​
Yuliya22 [10]

Answer: y=7/5-9x/5

Step-by-step explanation:

im sorry if this dont help

5 0
3 years ago
Read 2 more answers
Which of the following inequalities is equivalent to 3-(w+2)&gt;4+2w
Kay [80]

3 - w - 2 > 4 + 2w  \\  - w - 2w > 4 + 2 - 3 \\  - 3w > 6 - 3 \\   \frac{ - 3w}{ - 3}  >  \frac{3}{ - 3} \\ w <  - 1
The sign at the end changes because both sides of the equation are being divided by a negative number.
4 0
3 years ago
Read 2 more answers
Which formula(s) can be used to find the nth partial sum of a geometric sequence or the sum of the first n terms of a geometric
ivolga24 [154]

Step-by-step explanation:

An=A1. R raised to the power n-1

6 0
3 years ago
What is the scale factor plz help plzz
Anna [14]

Answer:

c

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
(3x²+4x-1) + (-2x²-3x+2)
Vedmedyk [2.9K]

Answer:

(3x²+4x-1) + (-2x²-3x+2)

3x²+4x-1 -2x²-3x+2

3x²-2x²+4x-3x-1+2

x²+x+1

5 0
3 years ago
Read 2 more answers
Other questions:
  • 1.75 = 12.3 - x / 2.8<br><br> Solve for x
    9·2 answers
  • I serious help. a ton​
    6·2 answers
  • What is the circumference of a circle with a radius of 4.4 centimeters? Enter your answer as a decimal in the box. Use 3.14 for
    10·1 answer
  • To measure the satisfaction of their customers Ali Baba restaurant sends out 1000 surveys to their customers. Out of the 823 sur
    5·1 answer
  • 1. Find the value of each expression. Show your work.
    10·2 answers
  • What is the value of w in the solution to the following system of linear equations ?
    15·2 answers
  • 3/4 empress fraction as decimal
    6·1 answer
  • Describe three different methods to solve x²- x - 56 =0
    15·1 answer
  • Rita has a rope 5 m long. She cuts it into 2 pieces of length 2 m 30 cm and 1 m 65 cm.
    12·1 answer
  • Use the graph below to answer the following question:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!