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Mathematics 15 Online
OpenStudy (chillhill):

How do you find the upper bound of this problem: Rachael walks to school The distance to school is 2.8km, correct to the nearest 0.1km. She walks at a speed of 5km/h, correct to the nearest km/h. Calculate the upper bound in minutes, for the time Rachael takes to walk to school.

OpenStudy (anonymous):

the time is equals to the distance/speed

OpenStudy (anonymous):

got it??

OpenStudy (chillhill):

So how to do you calculate the upper bound?

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