Equation:
6(1/x) = 2(1/7)
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6/x = 2/7
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2x = 42
x = 21
<span>60.5 milligrams per square centimeter
First, determine how many half lives have expired by dividing the time by the half-life. So:
55/20 = 2.75
That means that only 2^(-2.75) = 0.148650889 = 14.8650889% of the original substance remains. So just divide the amount remaining by 0.148650889 to get the original amount.
9 / 0.148650889 = 60.5445419
So originally, there was 60.5 milligrams per square centimeter 55 years ago.</span>
The table shows that every 1 hour he goes 12 miles so a variable would be 1h/24miles
Answer:Good luck hopefully somebody answer your question
Step-by-step explanation:
Answer:-2, 4, -4
Step-by-step explanation:
Graph
