If the 5 scores have a mean of 8, then their total sum would be 8*5 = 40
Now if one score if added (let's call this score x), there are 6 scores and the mean changes to 9, thus:
(40 + x)/6 = 9
40 + x = 54
x = 14
700 times 3 is 2,100, You get 700 from estimating 697
65:36 cannot be simplified. It would turn into a decimal number and we don’t put decimals in ratios
Amounttotal=amount per day times number of days
200=17.1 times d
divide both sides by 17.1
11.695=d
about 12 days
The unit u have to use to measure the amount of water in a swimming pool is in Liters :)