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worty [1.4K]
2 years ago
6

Need help! BIG OFFER FOR POINTS!

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
3 0
Which one ? All of them?
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Hello, 30 POINTS + BRAINLIEST If correct and has a long explanation. I looked at the same thing in other places but I think thos
ludmilkaskok [199]

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!

5 0
3 years ago
Read 2 more answers
John rented a bike from carlos' bikes it costs $19 plus $4 per hour if john paid $35 how many hours did he rent the bike
ss7ja [257]
You can write this as an equation. P(price) = 4h(hours) +19. We know that P=35. If you plug it in, 35 = 4h +19. Subtract both sides by 19 to get 16 = 4h. Divide both sides by 4, and you get 4 = h, or the amount of hours, John rented the bike.
4 0
3 years ago
A baker, in 70 minutes, iced 40 cupcakes and, in 49 minutes, iced 28 cupcakes. What is the constant of proportionality?
Zinaida [17]

Answer:

\frac{4}{7}

Step-by-step explanation:

The constant of proportionality is the slope of the line joining the two points

(70,40) and (49,28).

Recall the slope formula:

m =  \frac{ y_2 -  y_1 }{ x_2 - x_1}

We substitute the point to get:

m =  \frac{28 - 40}{49 - 70}  =  \frac{ - 12}{ - 21}  =  \frac{4}{7}

<u>Alternatively</u>:

A proportional relation is given by

y = kx

where k is the constant of proportionality.

Using any point, we substitute and solve for k.

40 = 70k

k =  \frac{40}{70} = \frac{4}{7}

8 0
3 years ago
Employees at a company are given £800 to spend on items for the office.
11Alexandr11 [23.1K]

Answer:51273.816238

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the opposite of the opposite of -7.5? Thank you
STALIN [3.7K]

Answer: 7.5

Step-by-step explanation: It's negative, so the opposite would be positive.

7 0
3 years ago
Read 2 more answers
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