The equation that would represent the number of groups in al would be:
(56/8) + (16/8) = g
7 + 2 = g
9 = g
There would be 9 groups.
You will use the information to write a number sentence that would show the total number of groups.
The required expression is 100 - 0.2w
Step-by-step explanation:
Given,
Amount of radioactive substance = 100 mg
The substance decreases by 20% each week.
To find the remaining amount of the in w weeks.
Now,
Each week 20% = 0.2 of the substance will be decreased.
So, in w weeks 0.2×w of the the substance will be decreased.
Hence,
The remaining substance = 100 - 0.2w
Step-by-step explanation:
I'm going with the 41....I'm not sure if it's right..
Shortest is 3/4 longest is 1 1/2. 1 1/2 -3/4=3/4
