SOLUTION: A spinner is divided into 7 equal sections. Each section is either green or red. The spinner was spun 23 times. It landed on a green section 15 times and on red section 8 times.

Question 295328: A spinner is divided into 7 equal sections. Each section is either green or red. The spinner was spun 23 times. It landed on a green section 15 times and on red section 8 times. Which proportion can be used to find the number R of sections that could be expected to be red ?
1. 8/(23-8) = R/7
2. 8/23 = 7/R
3. 8/23 = R/7
4. 7/(23-7) = R/8
5 7/23 = 8/R
Thanks for your help !!!

Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
if u have 3 out of 10 things its expressed 3/10 so if u have R and G out of 7 it would be R/7 and G/7
theres 23 total spins 8/23 spins land on red
theres 7 total sections R/7 sections are red
so

RELATED QUESTIONS
A spinner is divided into 7 equal sections. Each section is either green or red. The... (answered by JBarnum)

A spinner is divided into 9 equal sections. There are 4 yellow sections and 5 green... (answered by stanbon)

Two friends are playing a game. A spinner is divided into four equal sections labeled 2, (answered by Boreal)

Spinner experiment Color: red, blue, green, yellow occurrences: 23 , 44... (answered by rfer)

A spinner is divided into four equal sections that are numbered 2, 4, 5, and 7. The... (answered by Boreal)

A spinner is divided into 24 sections. Four sections are red. Six sections are blue.... (answered by stanbon)

A spinner has five equal sectors. Two are red, one is green, and two are orange. Dominick (answered by Alan3354)

assume that the spinner cannot land on a line. determine the probability that the spinner (answered by stanbon)

All of the sections on a circular spinner with 5 equal sections. If the spinner is spun 3 (answered by stanbon)