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Harlamova29_29 [7]
3 years ago
15

David swan, biked, and ran in the Camp Race. She biked twice as long as she ran, and swam 15 minutes more than she ran. Her tota

l time for all parts of the race was 1 hour and 35 minutes. How many minutes did David spend on each part of the race?
Mathematics
1 answer:
lidiya [134]3 years ago
6 0

Answer:

She biked 40 minutes.She ran 20 minutes.She swam 35 min.

Step-by-step explanation:

since you have 95 minutes for all parts first subtracted 15 from what she swam the you have four equal parts left the time she ram then twice she ran she biked and then the she swam 15 minutes More that she ran so you dived 95-15 which is 80  80/4 is 20 so she ran 20 min so 20 x 2 is 40 for she bike 40 then 20+15 is 35 so 40+20+35=95 an hour an 35 minutes

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Answer:

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3 years ago
What is 85% of 891? (please keep answer as decimal)
Vladimir79 [104]

Answer:

757.35

Step-by-step explanation:

1. We assume, that the number 891 is 100% - because it's the output value of the task. 

2. We assume, that x is the value we are looking for. 

3. If 891 is 100%, so we can write it down as 891=100%. 

4. We know, that x is 85% of the output value, so we can write it down as x=85%. 

5. Now we have two simple equations:

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2) x=85%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

891/x=100%/85%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 85% of 891

891/x=100/85

(891/x)*x=(100/85)*x       - we multiply both sides of the equation by x

891=1.1764705882353*x       - we divide both sides of the equation by (1.1764705882353) to get x

891/1.1764705882353=x 

757.35=x 

x=757.35

now we have: 

85% of 891=757.35

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