Suppose that the population of NYC is 10,000,000, and there're average of 3 people per household
= 3.3 million HHs
and 1 in 10 HHs has a piano
= 330,000 pianos
on average, a piano is tuned once a year
= 330,000 tuning per year
= 6,000 tunings per week
suppose a piano tuner works 5 days a week and handling 5 pianos a day. That will be 25 pianos a week
hence, you need 6,000/25 = 240 tuners
hope this helps
Answer:
b(h) = 4^h
Step-by-step explanation:
The ratio of counts from one hour to the next is 4/1 = 16/4 = 64/16 ... = 4. The count at h=0 is 1, so that is the multiplier of the exponential term.
b(x) = 1×4^h
Answer:
4, 9, 14, 19, 24
Step-by-step explanation:
we have

Solve the inequality
Multiply by
both sides-----> remember change inequality sign

the solution is the interval-----------> (-∞,-8]
using a graph tool
see the attached figure
the solution is the shaded area