Answer
Together, they have 99 marbles.
Explanation
Ravi has 33 marbles.
His brother has twice (two times) as many marbles as him. Ravi's brother has 33×2=66 marbles.
Together, they have 33+66=99 marbles.
The upper quartile is, Q1, is 45. The lower quartile, Q2, is 85. The interquartile range is 40. I hope this helps!
4%
This is because 1 = 100%
0.4 would equal 40%
So 0.04 is 4%
-1,+2,+4,+6,+8
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The amount of medicine required by a patient weighing 102 pounds is 166 milligrams
What is the amount of medicine required per pound of weight?
The amount of medicine required per pound of weight can be determined as the total milligrams of medicine required by the patent divided by the weight of the patient
medicine required per pound of weight=249/153
medicine required per pound of weight=1.62745098 milligrams/pound
1 pound of weight==1.62745098 milligrams
102 pounds of weights=1.62745098 milligrams*102
102 pounds of weights=166 milligrams
Find out more about medicine in relation to weight on:brainly.com/question/2564450
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