Convert meters* into centimeters 1m=100cm making the total = 1,000 then subtract the amount used. 1,000-210= 790
Answer:
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The answer would be 4.55 Km
Do 650*7=4,550
Then do 4,550/1,000=4.55
Hope this helps!
A Equivalent Ratio Is A Pair Of Equal Ratios.
If the half life is 20 minutes, then in 40 minutes there is 2 half lives. At the end of Each half life, you will have 1/2 of the sample remaining. So...
After 20 min you have
960/2 = 480
After 40 minutes you will have
480/2 = 240 grams
