Asked by Moby

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. Solve the formula for A. At what age would you have a recommended maximum heart rate in beats per minute of 125? (1 point)
A) 40 years
B) 50 years
C) 25 years
D) 45 years

Is it 25 years?
Answered by I'llGiveHelp
The equation is M=176-0.8A, where M=maximum heart rate (in beats/minute) and A=Age. The question is asking you to find the age if the maximum heart rate (in beats/minute), or M, is 125. So, just plug in the value of M, or 125, and solve the equation.
Answered by Moby
Can you show me the equation??
Answered by Ms. Sue
M=176-0.8A

125 = 176 - 0.8A
Answered by Moby
Do minus 176-.08 then divide it by 125 or??
Answered by Moby
50 yrs?
Answered by I'llGiveHelp
Or, as an easier way, subsitute A in the equation with each answer. Then see which equation equals 125 or around 125.
Answered by Moby
ok thanks ! I got 50.94 is this right? SO 52 years?
Answered by I'llGiveHelp
Read the multiple choice answers. 52 is not there, right? Since you got 50.94, The number of whole years is 50. So, your answer is 50.
Answered by FIGURE OUT MY NAME YOU KNUCKLE HEAD
NO CHEATS!
Answered by Bobby
On the test the answer is 52 lol
Answered by Wiz
Bobby is wrong the answer is 64
Answered by Lilly
1) d
2) b
3) b
4) a
5) a
6) b
7) b
8) c
9) a
10) b
11) b
12) b
13) a
14) d
15) b
16) b
17) d
18) b
19) c
20-22 written response
Answered by AnimeHunter
@Lilly is a liar
Answered by Aliza
Its 50
There are no AI answers yet. The ability to request AI answers is coming soon!