The answer would be
9
Hope this helps
Answer:
The mammoth died 17.190 years ago.
Step-by-step explanation:
Given information:
- Half-life of C-14 is 5.700 years.
- Living elephant bones commonly contain about 40% C-14.
For every 5700 years, the elephant's bones losses a half-life of C-14. And supposing that the living mammoth bones had the same percentage of C-14.
If the mammoth when living has 40%, then:
- After 5.730 years, the mammoth bones will contain 20%.
- After 11.460 years(2 half-lives), the mammoth bones will contain 10%.
- After 17.190 years(3 half-lives), the mammoth bones will contain 5%.
Answer:
Step-by-step explanation:
Alex and josh rode bikes. Alex rode 15 miles in 80 minutes josh rode 102 minutes at a faster rate per mile then Alex . Find Alex's unit rate in minutes per mile. Then explain how could you use it to find a possible unit rate for josh
Alex rode 15 miles in 80 minutes
His unit rate = 80 minutes /15 miles
|2x-3|=2x-1
need to consider two cases
(1) 2x-3<0 --> x<3/2
-(2x-3)=2x-1
x=1, and this is <3/2 so that's a valid solution
(2) 2x-3>=0 --> x>=3/2
2x-3=2x-1
-3 = -1 so there no solution for x>=3/2
The single solution is x=-1
Answer:
5000000000000000000
Step-by-step explanation:
