Answer:
5
Step-by-step explanation:
You are looking for x so what you are really looking for is what times 4 =20 and that is 5.
5x4=20
Answer:
t=-15.1
Step-by-step explanation:
Answer:
0.222222222
Step-by-step explanation:
in fractions, the / represents division.
so, we do:
2 ÷ 9 = 0.222222222
Hope this helps.
Yes because -5/4 = -1 1/4 as soon does 5/-4
Answer:
The sample loses
of its mass every
days.
Step-by-step explanation:
Expression that shows the relation between final mass of the element after 't' days is,
M(t) = 
If M(t) = two third of the initial mass [After the loss of one third of the initial mass remaining mass of the element = 1 -
=
rd of the initial mass]


![\frac{2}{3}=[(\frac{2}{3})^3]^t](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%3D%5B%28%5Cfrac%7B2%7D%7B3%7D%29%5E3%5D%5Et)

By comparing powers on both the sides
3t = 1
t =
day
Therefore, The sample loses
of its mass every
days.