Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
Answer:
25 is the answer
Explanation:
Step by step solution for calculating 40 is 160 percent of what number
We already have our first value 40 and the second value 160. Let's assume the unknown value is Y which answer we will find out.
As we have all the required values we need, Now we can put them in a simple mathematical formula as below:
STEP 140 = 160% × Y
STEP 240 =
160
100
× Y
Multiplying both sides by 100 and dividing both sides of the equation by 160 we will arrive at:
STEP 3Y = 40 ×
100
160
STEP 4Y = 40 × 100 ÷ 160
STEP 5Y = 25
Finally, we have found the value of Y which is 25 and that is our answer.
You can easily calculate 40 is 160 percent of what number by using any regular calculator, simply enter 40 × 100 ÷ 160 and you will get your answer which is 25
got this from Percent Calculator
<span>Conduction probably is the main method in the crust, but do not underestimate fluid convection. Every time you find a hot spring, then that is an example of fluid convection. ... Since these two are separate heat transfer from the outer core to the mantle is also mainly by conduction</span>
