6.
a) The average rainfall of the last week was 35 mm. If the records of daily
rainfall from Sunday to Friday were 45 mm. 22 mm, 28 mm, 36 mm, 30 mm
and 24 mm, find the rainfall on Saturday.
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Answers
Step-by-step explanation:
average rainfall of last week was =35 mm
rainfall of sunday =45mm
monday =22mm
tuesday=28mm
wednesday=36mm
thursday=30mm
friday= 24mm
saturday= x mm
average rainfall= sum of rainfall in each day
sunday - saturday /no. of week
days in week
35 =45+22+28+36+30+24+x / 7
35 = 185+x/7
35×7 = 185+ x
245-185= x
60mm = x
answer = rainfall on Saturday is 60mm
Step-by-step explanation:
35×7 =245
then,
45+22+28+36+30+24 = 185
245-185
=60mm