Question

The function b(n) = 6n represents the number of light bulbs b(n) that are needed for n chandeliers. How many lightbulbs are needed for 15 chandeliers?
90 lightbulbs
2 lightbulbs
96 lightbulbs
80 lightbulbs

Answer 1

n represents the amount of chandeliers you have. b(n)=6n represents how many lightbulbs are needed with respect to the amount of chandeliers you have

Answer 2

\[b(n)=6n\]
\[b(15)=6(15)\]
\[b(15)= 90\]

Answer 3

Okay! Thank you, so much! And I have another question, if you wouldntr mind helping??
Bamboo plants grow rapidly. A bamboo plant is 130 inches tall. Tomorrow it will be 143 inches tall, the next day it will be 156 inches tall, and on the next day it will be 169 inches tall. Write a rule to represent the height of the bamboo plant as an arithmetic sequence. How tall will the plant be in 13 days?

Answer 4

Ok, so whats the formula for arithmetic sequences?

Answer 5

For this probem +13?

Answer 6

No, not for this problem. I mean you need to find the formula that sequences this problem.

Answer 7

13 is the common difference.

Answer 8

\[a_{n} =a_{1}+(n-1)d\]

Answer 9

familiar?

Answer 10

ohhh, yeah, I got ya. Now what?

Answer 11

You said 13 is the difference, so what variable does that represent?

Answer 12

a?

Answer 13

No, d

Answer 14

Ohh..