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math hw expression word problem

Mathematics
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After m minutes, an adult blinks 10m+3 times.  About how many times does an adult blink in three minutes? Two hours?

Sep 9th, 2014

Adult blink in three minutes

Plug in m = 3 to get,

10*(3) + 3 = 30 + 3 = 33

So an adult blinks about 33 times in 3 minutes.

Adult blink in two hours

Plug in m = 120 (since 60 min = 1 hour)

10*(120) + 3 = 1200 + 3 = 1203

So an adult blinks about 1203 times in two hours.

Sep 9th, 2014

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