12/99 is the fraction form
Answer:
3031081 / 40678884
Step-by-step explanation:
To solve this, we can find the surface area of the moon and Earth, and then see how much the moon covers the Earth. The surface area of a sphere is equal to 4πr², so the radius of the Earth is
4πr² = 4 * π * 6378²
and the radius of the moon is
4πr² = 4 * π * 1741²
To figure out how much of the Earth's surface that the moon covers, we can implement a ratio of moons:Earth. This will give us an understanding of how many moons go inside one Earth. We thus have
(4 * π * 1741²) : ( 4 * π * 6378²) = (4 * π * 1741²) / ( 4 * π * 6378²)
cross out the 4 * π in the numerator and denominator
1741²/6378²
Next, we want to make the denominator 1, as that gives us 1 Earth. To do this, we can divide both the numerator and denominator by 6378². Because we are applying the same expression to both the numerator and denominator, this is essentially multiplying the fraction by 1, keeping it the same. We thus have
(1741²/6378²)/(6378²/6378²)
≈0.0745/1
≈ 0.0745
To put this in a fraction, we would have
(1741²/6378²)/1
= (1741²/6378²)
= 3031081 / 40678884
Answer:
$43 million
Step-by-step explanation:
<h3>Step 1. Turn the sentence into an equation (total = T)</h3>
15.4 million = 0.36 (T)
<h3>Step 2. Solve for T </h3>
15,400,000 / 0.36 = T
42,777,777.78 = T
$42.8 million ≈ $43 million (rounded)
The final answer rounded to the nearest million is $43 million. This makes sense since $15.4 was only 36% of this total. Checking our math, 36% of $43 million is $15.4 million!
Hope this helps :)
12 1/4= (12x4+1):4= 49/4 inches of rain
The number of hours is 2512
So we do the division to find out the <span>approximate rainfall rate in inches per hour:
49/4 : 2512= 0.0049 inches per hours
But I found you wrongly typed the hours 25 1/2= 51/2
If it is true we have </span>the <span>approximate rainfall rate in inches per hour:
49/4 : 51/2= 49/4 x 2/51= 0.48 inches per hour</span>