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tigry1 [53]
3 years ago
13

If angela swims 1,700 meters in 40 minutes what is her unit rate

Mathematics
2 answers:
LuckyWell [14K]3 years ago
8 0
1700m = 40 mins
60 mins = 1 hour
60 mins - 40 mins = 20 mins (Half of more)
1700 / 2 = 850
1700 + 850 = 2550 meter/hour
-BARSIC- [3]3 years ago
7 0
40 min=\frac{2}{3}h\\
1700m--\frac{2}{3}h\\
x m\ \ \ \ --1h\\
x=2550m/h
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The ratio of the number of apples to the number of pears in a basket was 3:5. After 7more apples were added to the basket and 9
atroni [7]

Answer:

Apples = 24

Pears = 40

Step-by-step explanation:

Let u be the unit of fruit in the basket,

number of apples: 3u +7

number of pears: 5u -9

now to find u, we equate the two equations.

3u+7=5u-9

Now simplify.

5u-3u=7+9

2u=16

u=8

Now we can find the original number of apples and pears by substituting u.

so original number of apples = 3u = 3(8) = 24

and original number of pears = 5u = 5(8) = 40

5 0
4 years ago
In my number the digit in the ones place is double the digit in the tens place. the sum of the digits is 3
jasenka [17]
The number is 21 because 2 is 1 doubled, and 2+1 is 3.
6 0
3 years ago
A rental car company has noticed that the distribution of the number of miles customers put on rental cars per day is skewed to
kodGreya [7K]

Using the Central Limit Theorem, the correct option is:

(c) Average number of miles put on a rental car per day across 25 customers.

--------------------------

The Central Limit Theorem states that, for a normally distributed variable X, with mean \mu and standard deviation \sigma, the sample means of size m are approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

  • The interpretation related to this problem is that the larger the sample size, the smaller the standard deviation.
  • Thus, among the options, the largest sample is 25, thus, option c will have the smallest standard deviation.

A similar problem is given at brainly.com/question/23088374

5 0
2 years ago
Please help
Andreyy89

9514 1404 393

Answer:

  y -1 = -1(x -2)

Step-by-step explanation:

The slope of the line through the two points can be found from the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (5 -1)/(-2 -2) = 4/-4 = -1

The point-slope equation for a line through point (h, k) with slope m is ...

  y -k = m(x -h)

You have (h, k) = (2, 1) and m = -1. Putting these values into the form gives ...

  y -1 = -1(x -2)

_____

<em>Additional comment</em>

Your problem statement already has two of the three values filled in, so you only need to enter the x-coordinate of the first point: 2.

5 0
3 years ago
A tree grows 1/4foot in 1/12 year .Write the rate at which this tree grows
konstantin123 [22]

Answer:

3inches each month or 36inches in a year

Step-by-step explanation:

5 0
4 years ago
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