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AM28
09.02.2021 •
Mathematics
four parcels had a weight of 400g. when a fifth parcel was added the mean became 500g. what was the weight of the fifth parcel?
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Ответ:
900 g
Step-by-step explanation:
Here, we want to get the weight of the 5th parcel
Mathematically, the total
is the mean multiplied by the count
the four parcel weighted 400 g averagely
The mean of this is 400(4) = 1,600 g
Adding the 5th parcel, we have an average of 500 g
This means that the total will be;
500(5) = 2,500 g
the difference in weight is the weight of the 5th parcel
That’s 2500-1600 = 900 g
Ответ:
125
Step-by-step explanation:
1,000 divided by 8 = 125
125 x 5 = 625
so the answer is 125