a volunteer for the local running club counted the number of participants at each race. participants per…

a volunteer for the local running club counted the number of participants at each race. participants per race how many races were there in all? races
Answer
Explanation:
Step1: Identify bar - heights
The bar - heights represent the number of races in each participant - range. For 0 - 9 participants: 15 races. For 10 - 19 participants: 5 races. For 20 - 29 participants: 5 races. For 30 - 39 participants: 10 races. For 40 - 49 participants: 0 races.
Step2: Sum up the number of races
Add the number of races in each range: $15 + 5+5 + 10+0$. $15+5 = 20$, $20 + 5=25$, $25+10 = 35$, $35+0 = 35$.
Answer:
35