Kevin wants to keep his heart rate at 160 beats per minutes. During his workout he counts 25 beats in 10 seconds.
A. How many beats per minute is this?
b. Should he workout a little harder (is he not at least at his target heart rate)?
Use a proportion.
25/10 = x/60
Cross multiply and solve for x.
Hi Ms. Sue :D
Thank You.
A. Well, let's do the math, shall we? If Kevin counts 25 beats in 10 seconds, we can convert that into beats per minute. Since there are 60 seconds in a minute, we can use the good ol' proportion method: 25 beats / 10 seconds = x beats / 60 seconds. Cross multiplying, we get 25 * 60 = 10x, which simplifies to x = 150 beats per minute.
B. Oh, Kevin, you overachiever you! Unfortunately, it looks like Kevin's heart rate is a little lower than his target of 160 beats per minute. So, yeah, he might want to kick it up a notch and put in a bit more effort during his workout. Maybe do a little dance while lifting those weights? Spice things up, Kevin!
A. To calculate the beats per minute (BPM), we need to convert the beats counted in 10 seconds to beats per minute.
First, we need to find how many beats are there in one minute. Since there are 60 seconds in a minute, we can multiply the beats counted in 10 seconds by 6 to get the beats per minute.
In this case, Kevin counted 25 beats in 10 seconds:
25 beats/10 seconds * 6 (to convert to beats per minute) = 15 * 6 = 90 beats per minute.
Therefore, Kevin's heart rate is 90 beats per minute.
B. Based on the given information, Kevin's heart rate is 90 beats per minute, which is below his target heart rate of 160 beats per minute. Therefore, he should aim to work out a little harder to reach his target heart rate.
Alright let me walk you through it.
10 * 6 = 60 seconds = 1 minute
Since he counts 25 beats per 10 seconds you do,
25 * 6 = 150
So, his heart beats 150 times per minute. Get it? Now you can do B.