If its (1/5)^4
625-3x=625
-3x=0
x=0
If its 1/5^4 then the answer is 390624/1975
I'm betting its (1/5)^4
Order of operations matters
Well there are 12 inches in 1 foot so
12x9=108
so
111-108=3
so
The average length of a female white beaked dolphin is 9 feet and 3 inches.
Taking 4 out from first two terms, we will get
Now we divide the coefficient of x by 2 and add and subtract the square of the result, we will get
Distributing 4
Cancelling 9
And that's the required standard form.
-(5 + (-11.3)) + (-4.3)
-(5 - 11.3) + (-4.3)
Distribute -1 into the parenthesis:
-5 + 11.3 + (-4.3)
-5 + 11.3 - 4.3
Add:
6.3 - 4.3
Subtract:
2
It is 19%!! :) an explanation is:
We assume, that the number 2500 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 2500, so we can write it down as 100%=2500.
4. We know, that x% equals 475 of the output value, so we can write it down as x%=475.
5. Now we have two simple equations:
1) 100%=2500
2) x%=475
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=2500/475
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 475 is what percent of 2500
100%/x%=2500/475
(100/x)*x=(2500/475)*x - we multiply both sides of the equation by x
100=5.2631578947368*x - we divide both sides of the equation by (5.2631578947368) to get x
100/5.2631578947368=x
19=x
x=19
now we have:
475 is 19% of 2500
