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UNO [17]
2 years ago
5

find the percent increase. round to the nearest percent from 85 books to 134 books. the percent increase is *blank*

Mathematics
1 answer:
krek1111 [17]2 years ago
4 0

Answer:

57.65%

Step-by-step explanation:

((y2 - y1) / y1)*100 = your percentage change

(where y1=start value and y2=end value)

((134 - 85) / 85) * 100 = 57.65 %

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The average heart pumps about 80ml of Blood each contraction. if your heart rate was 70 beats per minute, calculate the volume o
Anuta_ua [19.1K]
The heart beat rate is 70beats/minute with 80ml of blood pumped every beat. Then, the <span>volume of blood your heart pumps in one minute would be:

volume of blood per minute= volume per beat * beat per minute
</span>volume of blood per minute= 80ml/beat * 70beat/minute= 560ml/ minute<span>

</span>volume of blood per hour would be: 560ml/minute * 60 minute/hour= 33.600 ml/hour
5 0
3 years ago
Please help me smart people!!!!! It would be realllllyyyyy helpful right now!!!!!!
Bumek [7]
9. 2/6 and in simplified form it’s 1/3
10. 10/4 simplified is 5/2
11. 8/2 simplified is 4/1
12. 7/7 which is 1
13. Has no slope
14. 4/7
8 0
3 years ago
HELP PLS ITS URGENT
Andre45 [30]

Answer:

that looks to be a 45 degree angle but I'm not sure

8 0
1 year ago
I just need the angle :)
nadya68 [22]

Answer:

m<EAB=135

Step-by-step explanation:

m<FAD=30

m<EAF=90

180-90-30=60

m<EAC=60

180=60+5x+3x

-60 -60

120=8x

/8 /8

x=15

m<EAB=60+5x

m<EAB=60+5(15)

m<EAB=60+75

m<EAB=135

4 0
3 years ago
Please help! <br> I dont know how to work these problems-
Tema [17]
29. It is discrete because you cant have a part of a marble, only a whole marble

30. This is continuous because you can have a portion of a year.

31. This is continuous because time can be broken down into smaller intervals

32. This is discrete because you cant have a part of a team. x values between the given ones would give you a fraction of a team.

33. In this graph, the line is not continuous. Therefore, because there is no point at 2.5, 2.5 is not in the domain.

34. Even though the graph ends at x=6, all possible values of x between 0-6 are accounted for, making the line continuous. So, the line is continuous.

35. 
a. To find the domain, we have to solve for b first by making m=0. So, 0=55-8.5b
-55 = -8.5b, which is 55/8.5, or 110/17
So, the domain is 0<=x<=(110/117)
This is a discrete line because you can only have whole numbers for "b" because you can only buy whole books
b.(cant really graph it on here :P  )
c. When x = 0, y = 55, and when x = 110/117, y = 0. So the range is 0<=y<=55

36.
a. Because there is no limit to the function, the domain is x>=0. The function is continuous because the time can be broken down into smaller intervals
b. (cant really graph it on here :P )
c. The range is y>=0 because the least x can be is 0, but it can keep increasing.

37. 
a. This does represent a linear function because the distance increases by .434 miles at every interval (every 2 seconds)
b. The domain would be t>=0 because you can't have negative time, but you can wait infinitely long. This should be continuous because time and distance can be broken down into smaller intervals.
c. (cant really graph it on here :P )
d. The smallest t can be is 0, and when t=0, d=0. Because domain is infinite, range is also infinite. Therefore the range is d>=0

38.
a. It is linear because there is an 'x' input and 'y' output and there are no exponents in either variable.
b. x can equal 0, and it can be infinite. So, the domain is x>=0. It is discrete because you cant have a partial service, only a whole.
c. (cant really graph it on here :P )
d. When x=0, y=30. Because domain is infinite, range is also infinite. Therefore the range is y>=30

43.
a. If you subtract 61.20 from 71.40, you can see that every hour, the earnings increase by 10.20 dollars. Therefore, the missing value is 61.20-10.20, or 51.00
b. Every hour you get 10.20.

44.
a. This is not a linear function. This is because the function breaks at t=5, which should be 300 if it was following the original pattern, which was d=60t
When t=1, d=60
When t=3, d=180.
But, when t=5, in the function, it equals 300 while in actuality, it equals 300
b. He is correct because if Car A is still following the function, it would have only gone 300 miles, while Car B had gone 310 miles.

Hope this helped!! Let me know if any of this is unclear or if you're still having some trouble!! :D
7 0
3 years ago
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