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Contact [7]
2 years ago
10

brigid ran a 26.2 mile race last sunday. her average speed during the race was 11.7 miles per hour. how long did it take brigid

to finish the race? round your answer to the nearest tenth
Mathematics
1 answer:
Helen [10]2 years ago
4 0

Answer:

2.24 hours

Step-by-step explanation:

time = distance/rate

t = 26.2/11.7

t = 2.24 hours

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3/7 of the people living in the apartment building are men. 5/8 of the remaining are women. The rest are children. A total of 27
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People in building ---- x (men, women and children)
children --- y
men + women + children = x
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times 14
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y + 220 =x
sub into the other one
14y = 3(y+220)
11y = 660
y = 60
then 14(60) = 3x ---> x = 280

So we have 280 people in the building.

check: 3/7 of 280 are men = 120
leaving 160 women and children
5/8 of these ot 100 are women

so we have 120 men, 100 women and 60 children!

hope this is right! have a great. day
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