Answer:
58.5kg
Step-by-step explanation:
=56.6kg×5
=283kg(5 friends total weight)
=283kg+62kg+64.5kg÷7
=58.5kg
Hope this will help ya!
Answer:
58.5kg
Step-by-step explanation:
To calculate mean, you add all the values, and divide the sum by the number of values. So, to find the total weight, you must multiply because multiplication is the inverse operation. 56.6 * 5= 283 kg. Two more people join, so you must add their weight to the total weight. 283 + 64.5 + 62= 409.5
Now, there are a total of 7 people (5+2=7). SO to find the mean, divide the total weight (409.5) by the total number of people (7) to find the mean.
409.5 / 7= 58.5
