DONT PRESS THE LINK PLS ITS A VIRUS
9w + 45 = 126
Ivan earns $9 per week so we would write it as 9w
Add 45 to it because that is what he also saved
Then he spent those savings which was 126.
Now we can find how many weeks he was saving for.
First minus 45 from both sides
9w = 126 - 45 = 81
The divide both sides by 9
w = 9
Ivan has been saving for 9 weeks
Answer:
878 years
Step-by-step explanation:
The amount of carbon-14 present in animal bones after t years is given by:
If the bone has lost 10% of its carbon-14.
Its Initial Amount of C-14, =100%=1
Present Amount, P(t)=(100-10)%=90%=0.9
Substituting these values in the model
The bone is 878 years old.
The sequences goes by 2.
The difference between the first two number is 4.
The difference between the second and third number is 6.
The difference between the third and fourth number is 8.
The difference between the fourth and fifth number is 10.
So therefore the sequence goes by 2.
hope this helps,if you have any questions please don't hold back to message me :)