math
posted by Anonymous .
The number of streetlights in a town is growing linearly. Four months ago (n = 0)
there were 130 lights. Now (n = 4) there are 146 lights. If this trend continues,
a. Find an explicit formula for the number of lights in month n
b. How many months will it take to reach 200 lights?

z = 130+4n
z=200 when n=17.5
Respond to this Question
Similar Questions

Physics
I am confused as to how light would work in the following question: Some very efficient streetlights contain sodium vapour under high pressure. They produce light that is mainly yellow with some red. Should a community having these … 
math
The city is planning to install streetlights and wants five lights along a walkway of 60 yards. If there is a light at the beginning and at the end of the walkway and the lights are evenly spaced, what is the distance between each … 
physics
Your younger brother and you are putting up christmas lights, he broke one of the bulbs causing all of the lights to go out. These lights are wired in what? 
Physics
Ken has five 200W security lights on outside of home. How much energy do the security lights use in 8 hrs? 
math
Rufus is in charge of lighting a play. Half the lights he uses are white. Of the remaining lights, 1/3 have red filters, and 4 have blue filters. The 10 lights left have yellow filters. How many lights does Rufus use for the play? 
Finite Math
A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lights are selected one at a time without replacement and tested until both defective lights are found, what … 
English
What can you do to save electricity? 1. I can turn off the lights when I leave my room. 2 I can turn off the lights when I don't use the room. 3.I can turn off the lights when I don't stay in the room. 4. I can turn off the lights 
Math HELP!
A LightsALot quality inspector examines a sample of 25 strings of lights and finds that 6 are defective. a. What is the experimental probability that a string of lights is defective? 
MATH HELP
A LightsALot quality inspector examines a sample of 25 strings of lights and finds that 6 are defective. a. What is the experimental probability that a string of lights is defective? 
MATH ANSWER HELP
A lights A lot quality inspector examines a sample of 25 strings of lights and finds that 6 are defective. a. what is the experimental probability that a string of lights is defective b.what is the best prediction of the number of …