During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula M=176-0.8A, where M is the maximum heart rate and A is the person’s age. Approximately, at what age would you have a recommended heart rate in beats per minute of 125?
A.52 years
B.64 years
C.67 years<---
D.70 years
125 = 176- 0.8A
125 - 176 = - 0.8A
-51 / -0.8 = A
63.75 = A
solved it myself. for 2021 answer is 51.
176- (0.8 x 51)= 135.2
Bro “Wicked Ferret” (I don’t know what kind of name that is but whatever) It is not “B” I turned in the test and it was not “B” lucky for me I put in a different answer and got it right SO WHY DONT YOU USE YOUR BRAIN and get the answer right! “CYA” (Don’t give fake information on the internet”
Take the answer Ms. Sue has and round it (63.75)
you should get 64
It doesn't make sense!!!
@soneillon 51 is not even an answer
:> Good Soup
So if m= max heart rate, which you know is 125. Then write the equation as. 125=176-0.8A. Now solve for A to get the persons age. You will need to round to get the answer.
what about same equation, but with a bpm of 125?
A. 25
B. 39
C. 51
D. 53
135** sorry
wickedferret not all math questions have realistic answers use your head
Why are there so many bad ads on this website???
Idk lol
During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula M = 176 – 0.8A, where M is the maximum heart rate and A is the person’s age. Approximately, at what age would you have a recommended heart rate in beats per minute of 135?
M = 176 - 0.8A
Substituting M with 135:
135 = 176 - 0.8A
0.8A = 176 - 135
0.8A = 41
A = 41/0.8
A = 51.25
Therefore, the recommended heart rate of 135 beats per minute would be approximately for a 51-year-old person.
Which is M equals three hundred times J over P solved for J?
M = 300J/P
Multiplying both sides by P, we get:
MP = 300J
Dividing both sides by 300, we have:
J = MP/300
Therefore, the solution for J is J = MP/300.
Note: For questions 20-22, your teacher will grade your responses to ensure you receive proper credit for your answers.
Find the common difference in the outputs to help find the missing outputs in the table. Be sure to show your work.
a
5
6
7
8
9
b
3.8
4.6
5.4
The common difference between adjacent terms in column a is 1. So, 10 should be the next term in column a.
To find the missing value in column b, we note that the common difference of the terms in column b is equal to (the value of the 2nd term - the value of the 1st term) which is equal to (the value of the 3rd term - the value of the 2nd term) which is 0.8.
So, the missing value in column b can be found by adding the common difference to the previous term, which is 6.2 in this case:
5.4 + 0.8 = 6.2
Therefore, the missing value in column b is 6.2.
Lisa takes a loan of $10,500 at a 9% simple interest rate for 7 years.
How much interest will she pay after 3 years?
How much interest will she pay in total for the loan?
First, we can use the formula for simple interest to calculate how much interest Lisa will pay in total for the loan:
I = Prt
Where I is the interest, P is the principal (the amount of the loan), r is the interest rate as a decimal, and t is the time in years.
So for Lisa's loan:
I = (10,500)(0.09)(7)
I = $6,615
Therefore, she will pay a total interest of $6,615.
To find out how much interest she will pay after 3 years, we can use the same formula but with t = 3:
I = (10,500)(0.09)(3)
I = $2,835
Therefore, she will pay $2,835 in interest after 3 years.
IM CONFUSED
UvU Good Soup
To start with, you're not supposed to multiplying anything. M= 176-0.8A. M+ 0.8A=176. We know what m is, so the equation becomes 125 + 0.8A = 176. We rearrange the equation to be 0.8A= 176-125. Now to get A by itself, we divide both sides by 0.8 so then A= (176-125)/0.8
176=220
125=156
1
I did 175.2 multiplied by 0.7134 then I rounded to get 125. So I don't get how to get the answer!!!
@soneillon its C. 51
52
The answer is "B"
Why?
Cuz it's the only logical answer
USE. YOUR. HEADS. God gave 'em to you for a reason.
Now, I gotta run
CYA!!!