Question

Can someone help me on thissss

Answer 1

100% is 9, 55% is 4.95, 75% is 6.75.

Explanation:

Suppose that 100% were
`x`. Then 30% is 27, so
`0.3x=27` and we can divide both sides by 0.3 to see that
`x=(27)/(0.3)=(27)/((3)/(10)) = (27\cdot 10)/(3) = 90.` So 55% is
`0.55x = 0.55 \cdot 9 = 4.95` and 75% is
`0.75x = 0.75\cdot 9=6.75`. (Note that we can divide the value of a percentage by 100 - the same as moving the comma by two places to the left - to get the decimal value.)