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krok68 [10]
3 years ago
13

Judy's heart beats 70 times a minute. At this rate, how many times does her heart beat in an hour?

Mathematics
2 answers:
Eva8 [605]3 years ago
7 0

Answer:

4200 times

Step-by-step explanation:

If there is 70 beats in a minute, and 60 minutes in an hour. All you do is 70*60.

Nikitich [7]3 years ago
5 0

Answer:

4,200 hbph

Step-by-step explanation:

Hope this helps and have a great day!!!

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1. It takes the Earth 24 h to complete a full rotation. It takes the sun approximately 25 days, 9 h, and 7 min to complete a ful
brilliants [131]

Note that there are 24 hours in 1 day, and 60 minutes in 1 hour

First, multiply 25 with 24

25 x 24 = 600

Next, add 600 with 9 hours

600 + 9 = 690

Note that there are 60 minutes in 1 hour. Divide 7 minutes with 60

7/60 = ~0.12 (rounded)

~690.12 hours is your answer

hope this helps

6 0
3 years ago
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Max is stacking logs at his campground for firewood. After his first load of logs, he has 9 logs on the stack. After his seventh
sleet_krkn [62]

Answer:

D an = 9 + 7(n-1)

Step-by-step explanation:

In the question, Max has 9 logs in the first load. But, after the seventh load he has a total of 51 logs. So the n would be your logs in the stack, which is 51. And since there is a total of 51 logs after the seventh load. It would be 9 plus 7 in parenthesis of  51 minus one, which is 50. So 50 times 7 comes down to 350 plus nine which comes down to a total of 359.

8 0
4 years ago
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If the simple interest on ​$6,000 for 2 years is ​$840​, then what is the interest​ rate?
ankoles [38]

Answer:

7 %

Step-by-step explanation:

  • i do not know if you use this but I use S.I=P×R/100×T
  • S.I=840
  • P for principal(the money you borrow or lend) =6000
  • T for time=2 years.
  • R for rate=???
  • In order to find out the rate, you need to substitute all these numbers into their respective places.
  • 840=6000×r/100×2
  • 6000/100=60
  • 840=60×r×2
  • 840=120r
  • r=7%
5 0
4 years ago
Which equation is equivalent to 5= 4/3 (6y +9)?
vekshin1

Answer:

option C

Step-by-step explanation:

5 = \frac{4}{3}(6y + 9)\\\\5 = \frac{4\times6y}{3} +\frac{4 \times 9}{3}\\\\5= 8y + 12

8 0
3 years ago
Helen had $12 but spent $3 of it. What per cent did she spend?
Bezzdna [24]

Answer:

25%

Step-by-step explanation:

Its basic division really. The easiest way to think of it is how many times can 3 fit into 12 three fits into 12 four times in fraction that's 1/4 or 1 over 4. Just like the quarter (United States quarter) each one is 25 cents and you need 4 of then to make 1 US dollar or 100% so each group of three is 25 percent. This under standing could work with a variety of numbers 5 is what percent of 20 or 7 is what percent of 28 if it comes in 4s each is 25%. Hope this helps.

4 0
3 years ago
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