Answer:
≈ 1833
Step-by-step explanation:
To find ratio of proton mass to electron mass, we have to divide.
The numbers are given in <em>scientific notation</em>.
Let a number be
and another be
, when we divide, we will follow the rule shown below:

Now, we use the information given to find the ratio:

This means we can find the number by taking 4 decimal places to the right, so that would becomes:

The approximate ratio is 1833 [mass of proton is around 1833 times heavier than mass of electron]
If two numbers round to the same number it doesnt always mean they are equal, for example: 11 and 9 both round to ten but they are not the same number
Answer:
227.5
Step-by-step explanation:
x=Kofi
x+75=Kojo
x+x+75=380
2x+75=380
2x=305
x=152.5
Kojo=152.5 plus 75
227.5
Factoring completely you get: 3(3x-1)(2x+3)
1.7088061E11 on a calculator that's what I did