Answer:
Took the test on K12 and your answer would be 5.21
Step-by-step explanation:
A=A₀

A/A₀=24%=0.24
0.24=

0.000121t=ln(0.24)
t=ln(0.24)/0.000121
=-11794.35
so painting is 11794 years old
we need to find the equation in the form y=mx+b, so:
4x+y=5
y=-4x+5
the "4x" go subtracting to the other side
and we have m=-4 and b=5
so the answer is: y=-4x+5
Answer:
9 : 7, or 9/16 to 7/16
Step-by-step explanation:
We know that there are 9 blue hats.
We know there are 7 red hats.
This is a 9 : 7 ratio.
In fraction form, we must find the total ratio, use that as the denominator, then take the seperate amounts, such as bluei adn red hats, and use that as the numerator:
9+7=denominator
denominator = 16
Blue hats = 9
Ratio of red = 9/16
Red hats = 7
Ratio of red = 7/16
Hope this helps!
Answer: 44 students per 1 bus
Step-by-step explanation: 176/4