Answer:
7.3%
Step-by-step explanation:
First you have to find out what 38 out of 41 is as a percentage
This is 92.68%
so now we have to do
100.00 - 92.68 this is 7.32
But you said round to the nearest tenth so it would actually be rounded down to 7.3%
Answer:
red=500
yellow=300
green=400
Step-by-step explanation:
If she started with $40 and ended up with $10, that means she must've used $30. Since the popcorn bags were all identical and she bought 12, you can divide 30 by 12 which gives you 2.5.
The answer is $2.50.
Answer:
Every week, the radioactivity decreases by a factor of 5
After 1 week, it goes from 5,000 to 1,000
2 weeks 1,000 / 5 =200
3 weeks 200 / 5 = 40
4 weeks 40 / 5 = 8
5 weeks 8 / 5 = 1.6
6 weeks 1.6 / 5 = 0.064
7 weeks 0.064 / 5 = 0.0128
8 weeks .0128 / 5 = 0.00256
9 weeks 0.00256 / 5 = 0.000512
10 weeks 0.000512 / 5 = 0.0001024
Step-by-step explanation:
