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Oliga [24]
3 years ago
6

Dina started swimming at 3:35 P.M. She swam until 4:20 P.M. How long did Dina swim for?

Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0

Answer:

she swim 45 min .from 3.35 to 4:00 .25 min come and add with 20 =45

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an assembly line worker at Rob's Bicycle factory adds a seat to a bicycle at the rate of 2 seats in 11 minutes. Write a proporti
LuckyWell [14K]
Rate = 2 seats/11 minutes = 2/11  seats/min

Therefore the time required for s seats is
(m \, min) =  \frac{s \, seats}{ \frac{2}{11} \,  \frac{seats}{min} } =  \frac{11s}{2} \, min
That is,
m = (11s)/2 min

When s = 16, obtain
m =  \frac{11(16)}{2} = 88 \, min

When s = 19, obtain
m =  \frac{11(19)}{2} = 104.5 \, min

Answers:
m = \frac{11s}{2}
When s = 16, m = 88 min
When s = 19,  m = 104.5 min


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