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4 years ago

Can someone help me on this one.

Mathematics

2 answers:

Thepotemich [5.8K]4 years ago

7 0

1. 6km/h
2. 10 minutes

gtnhenbr [62]4 years ago

6 0

Answers:

a) 6km/hour

b) 10 minutes

Step-by-step explanation:

a) after 30 minutes, Jo had walked 3km which means that after 1 hour

(30mins x 2), Jo would have walked 6km (3km x 2).

∴ Jo walks 6km/hour for the first 30 minutes

b) after 30 minutes, there is a flat line on the graph that stretches from 30 minutes to 40 minutes. The flat line indicates that Jo covered NO distance and was therefore taking a break. from 30 mins to 40 mins is 10 mins

∴ Jo's rest was 10 mins long

Hope this helps :-)

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Answer:

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Here, we want to know the amount of time Judy spent exercising.

We proceed as follows;

Mary spent 3 hours , sandy spent 50 minutes less than Mary. The amount of time spent by Sandy is thus 2hrs 10 minutes

Judy spent 1hr 15 min less, the amount of time he spent is thus

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2 hrs 10 minutes is same as 2(60) + 10 = 120 + 10 = 130 minutes

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The amount of time spent is thus 130 - 75 = 55 minutes

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