Estoria29 Estoria29

02-02-2017
Biology

contestada

After three half-lives, a sample contains 20 grams of parent isotopes. How many grams of the parent isotope were present to start?

Respuesta :

MimzyTheDragon MimzyTheDragon

02-02-2017

160 grams i believe. have a good day

Answer Link

Otras preguntas

“a fraction f multiplied by 13 equals 29.

how old is janet??? kaewjhbfskjbrhf skjwnv

How are lifestyle diseases different from illnesses like the flu, the common cold, or strep throat?

35 POINTS PLEASE HELP ME Prompt Lee del cuento Pescador de Caña por Ernesto García Ladevese y contesta las preguntas que siguen. Pescador de Caña Sentado a la

How have people reacted to this new goverment?

Use cross multiplication to figure this out. (What does xy = ) .78x/7 = 19/4y

Calculate the probability P(E). The Heavy Weather Service predicts that for tomorrow there is a 50% chance of tornadoes, a 25% chance of a monsoon, and a 15% ch

Please Answer! ASAP!

Pls help if you only know the correct answer!!! Thanks!!

Which linear function represents the line given by the point-slope equation y + 1 = -3(x - 5)? O f(x) = -3x - 6 O f(x) = -3x - 4 O f(x) = -3x + 16O f(x) = -3x +