Answer:
<em>0</em><em>.</em><em>0</em><em>3</em><em>5</em><em> </em><em>gram</em><em>.</em><em>.</em><em>.</em><em>.</em>
Step-by-step explanation:
.........
<h3>
Answer: 7/13</h3>
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Explanation:
We know that the marble selected is red, so we don't need to focus on the other colors.
7 red marbles are in urn B out of 2+7+4 = 13 total red marbles.
The probability the red marble came from urn B is therefore 7/13
569/x=100/18
multiply both sides of the equation
569=5.55556
now we divide
569/5.55556
102.42=x
18% of 569=102.42
We can first find the weight of the other elements which are less heavier than oxygen:
38.6-20.4
=18.2kg
To find her weight,we can add up the weight of all elements:
18.2+38.6+6.1
=56.8+6.1
=63.1 kg
Therefore Anne’s weight is 63.1 kg
Hope it helps!
