Sam's heart beats 1,965 times during 15 minutes of rowing. while resting, sam records his heart beating 16 times in 15 seconds. what is the difference between sam's heart rate when he was rowing vs resting?

67 beats per minute

Step-by-step explanation:

Sam's heart rate while rowing = 1965 times per 15 minutes

So, in one minute, Sam's heart will beat = beats per minute

Therefore, Sam's heart beats 131 times in one minutes while rowing.

While resting Sam's heart beats 16 times in 15 seconds.

In 1 second, his heart beat will be = beats per second

In 60 seconds(1 minutes), his heart beat will be = beats per minute

The difference in the heart rate of Same when he was rowing vs resting = 131 - 64 = 67 beats per minute

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.