The mean weight for 5 friends is 56.6kg . if 2 more people weighting 62 and 64.5kg join them , what will be their new mean weight

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!

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

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.