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emmainna [20.7K]
4 years ago
5

jill swam 200m in 2 minutes 42 seconds if each lap is 50 m long which is most likely to be her time in seconds per lap

Mathematics
2 answers:
Arisa [49]4 years ago
8 0
120s + 42s = 162s . 162 ÷ 4 = 40,5 seconds :D
kogti [31]4 years ago
6 0
The answer is 40.5 seconds per lap. Hope this helps

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Answer:

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Step-by-step explanation:

step 1

we have

678,901

Write in expanded form

678,901=600,000+70,000+8,000+900+1

The value of 7 is 70,000

step 2

we have

67,890

Write in expanded form

67,890=60,000+7,000+800+90

The value of 7 is 7,000

step 3

Divide 70,000 by 7,000

\frac{70,000}{7,000}=10

therefore

The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890

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