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laila [671]
3 years ago
7

How many heartbeats are in 45 seconds​

Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

about 56! since there are around 75 per min

Step-by-step explanation:

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A passenger car weighs 4.5x10 units. Which unit of measure was used? grams ounces O pounds 0 tons​
Katen [24]
It would be pounds, hope this helps :)
7 0
3 years ago
Derek reads at a rate of25 words per minute. If he reads constantly until he is finished, how long with it take him to read a 22
emmasim [6.3K]
225/25= 9 

It would take Derek 9 minutes to read the 225-word article. 

I hope this helps!
~kaikers
4 0
4 years ago
This table gives a few (x,y) pairs of a line in the coordinate plane
umka21 [38]

Answer:

-41

Step-by-step explanation:

Use 2 points to find the equation of the line using the 2-point form of the equation of a line. Then we write the equation in the slope-intercept form to find the y-intercept.

y - y_1 = \dfrac{y_2 - y_1}{x_2 - x_1}(x - x_1)

We can use points (-36, -117) and (-27, -98), so

x1 = -36

x2 = -27

y1 = -117

y2 = -98

y - (-117) = \dfrac{-98 - (-117)}{-27 - (-36)}(x - (-36))

y + 117 = \dfrac{19}{9}(x + 36)

y + 117 = \dfrac{19}{9}x + 76

y = \dfrac{19}{9}x - 41

The y-intercept is -41.

4 0
3 years ago
Marcus throws a football straight up into the air. After it reaches its maximum height of 20 feet, it descends back to ground. W
alukav5142 [94]

Answer:

I'm not sure.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
luis owns an assortment of hats. the ratio of winter hats to baseball hats is 2:3. if luis owns a total of 20 hats, how many win
dybincka [34]
<h3>Answer:  8 winter hats</h3>

Explanation:

x = number of winter hats

20-x = number of baseball hats

Dividing those quantities will get us 2/3 because of the ratio 2:3

x/(20-x) = 2/3

3x = 2(20-x)

3x = 40-2x

3x+2x = 40

5x = 40

x = 40/5

x = 8

There are 8 winter hats

And there are 20-x = 20-8 = 12 baseball hats.

The ratio 8:12 reduces to 2:3 after dividing both parts by 4. This helps confirm the answer.

4 0
2 years ago
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