Answer:
.1 (or 1/10)
Step-by-step explanation:
3 * 10^9 = 3 * 10^8/x
<em>Use PEMDAS to interpret</em>
3* 10^9 = 3 * (10^8)/x
<em>Divide both sides by 3</em>
10^9 = (10^8)/x
<em>Divide both sides by 10^8</em>
10 = 1/x
<em>Find the reciprocal of both sides</em>
1/10 = x
Answer:
Porosity of the sand is, 20 %.
Step-by-step explanation:
So according to the question,
10 mL of sand contains (5 - 3) mL = 2 mL of water and this water fills the gaps or pores between the sand partcles. So, porosity of the sand is given by,
%
= 20 %
Get the mixed number into one fraction

Get a common denominator

Now add

You can get it back to a mixed number
Squares are:
1. Equal on all 4 sides
2. All Have the same angle measure of 90 degrees
On each one you have to put in the amount of soap in for the halves put half the x