Question

Hello, 30 POINTS + BRAINLIEST If correct and has a long explanation. I looked at the same thing in other places but I think those people misread some parts. I will put a parenthesis around the parts you should read carefully. Thank you so much!
Please take notice that it says how long it took him to practice EACH SWIMMING EVENT and not how long he practiced every day. Thank you so so much!


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Trayvon recorded the number of minutes he spent practicing each (swimming event) over three days. He recorded his times in the table below.


Trayvon’s Swim Practice Times


Monday Wednesday Friday

Backstroke 12.5 min 15.67 min 9.32 min

Butterfly 14.333 min 12.1 min 10.78 min


Which statement explains how to find the event Trayvon spent more time practicing?

A Compare the sum 12.50 + 15.67 + 9.32 = 37.49 to the sum 14.333 + 12.100 + 10.780 = 37.213; he spent more time practicing the backstroke than the butterfly.

B Compare the sum 12.05 + 15.67 + 9.32 = 37.04 to the sum 14.333 + 12.001 + 10.078 = 36.412; he spent more time practicing the backstroke than the butterfly.

C Compare the sum 12.500 + 14.333 = 26.833 to the sum 15.67 + 12.10 = 27.77 and to the sum 9.32 + 10.78 = 20.1; he spent more time practicing on Wednesday than on the other days.

D Compare the sum 12.005 + 14.333 = 26.338 to the sum 15.67 + 12.01 = 27.68 and to the sum 9.32 + 10.78 = 20.1; he spent more time practicing on Wednesday than on the other days.

Answer 1

Answer:

A

Step-by-step explanation:

We have a table listing the number of minutes Trayvon practiced the Backstroke and Butterfly on Monday, Wednesday, and Friday.

We want to find event that Trayvon spent more time practicing.

To do so, we add up all the minutes of one event and compare this to the total minutes of the other event.

Therefore, we can eliminate options C and D. These two options evaluate the time on Wednesday compared to other days, but we want to do is to find which event did Trayvon spend the longest on.

So, let's add up all the minutes spent doing the Backstroke. Trayvon over the course of the three days spent 12.5 mins, 15.67 mins, and 9.32 mins.

Therefore, the total minutes Trayvon spend practicing the Backstroke is:

$12.5+15.67+9.32=37.49\text{ mins}$

Now, let's add up all the minutes spent doing the Butterfly. Trayvon spent 14.333 mins, 12.1 mins, and 10.78 mins over the course of three days. So, the total time spent doing the Butterfly is:

$14.333+12.1+10.78=37.213\text{ mins}$

Trayvon spent a total of 37.49 minutes doing the Backstroke and 37.213 minutes doing the Butterfly.

37.49 is greater than 37.213. So, Trayvon spent more time practicing the Backstroke.

So, our correct answer is A.

There are some number and calculation errors in B.

And we're done!

Answer 2

Answer:

C

Step-by-step explanation:

On Monday he spent 12.5 min on backstroke and 14.33 min on butterfly.

He spent 26.83 min practicing at the Monday event.

On Wednesday: 15.67 min on backstroke and 12.1 min on butterfly.

He spent 27.77 min on practicing at the Wednesday event.

On Friday: 2.32 min on backstroke and 10.78 min on butterfly.

He spent 13.1 on practicing at the Friday event.

So, he spent more time at the Wednesday event.