The music for jordyn’s dance routine lasts for exactly 4 minutes.   when jordyn dances her routine, she starts with her music and finishes 12 seconds before the music ends.   what percent of the time the music is playing is jordyn dancing?

95%

4 minutes is 4×(60 seconds) = 240 seconds.

The amount of dance time is (240 -12) seconds = 228 seconds.

The percentage of music time spent dancing is ...

... (228 seconds)/(240 seconds) × 100% = 95%

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: