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mezya [45]
3 years ago
7

(ii) Round off the number of seconds in an hour to 1 significant figure.

Mathematics
1 answer:
kirill115 [55]3 years ago
4 0

Answer:

see below

Step-by-step explanation:

(ii)

Given 4000 seconds to hours you divide the value by 3600 sec

=4000/3600 =1.1111

=1.0 hour (1 significant figure)

(b)

speed = 212 miles/hour

distance= 1 mile

time = distance/speed = 1/212 * 3600 =16.98 seconds

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