Find the missing length. The triangles in each pair are similar
2 answers:
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Answer:
120 students did Jada survey
Step-by-step explanation:
*<em> Lets explain how to solve the problem</em>
- The results of Jada survey are shown in this circle graph
# Communication tools Text messages 5/12
# Phone 1/5
# Emails 1/20
# Other messaging apps 1/3
- A total of 50 students said they favored text messages to
communicate with friends
- We need to find the total number of the students in Jada survey
- <em>Assume that the total number of the students in the survey is </em><em>x</em>
∵ The Communication tools Text messages expressed by a
fraction 5/12 of the circle graph
∵ The total of 50 students said they favored text messages to
communicate with friends
- That means The fraction of x equivalent to 50
∴
- Multiply both sides by 12
∴ 5x = 600
- Divide both sides by 5
∴ x = 120
∵ x represents the number of the students in Jada survey
∴ 120 students did Jada survey