Answer:
15,008 grams
Step-by-step explanation:
You have 30,016 grams of radioactive kind of rubidium. How much will be left after 54 minutes if its half-life is 18 minutes? 15,008 grams.
First order the numbers from least to greatest then cross out the numbers until you get to the middle one which is 18 ft. Hope this helped
3 divided by 5 is 0.6 so 0.65 is bigger
30 & 150. 150 is five times 30, and 150+30=180
The formula for distance between two points is:
In this case:
^^^Plug these numbers into the formula for distance like so...
To solve this you must use the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction)
First we have parentheses. Remember that when solving you must go from left to right
0 - 3 = -3
-9 - (-8) = -1
Next solve the exponent. Again, you must do this from left to right
(-3)² = 9
(-1)² = 1
Now for the addition
9 + 1 = 10
√10 <<<This can not be further simplified so this is your exact answer
Your approximate answer would be about 3.16
***Remember that the above answers are in terms of units
Hope this helped!
~Just a girl in love with Shawn Mendes