Answer:
The measure of angle BCD is 
Step-by-step explanation:
step 1
Find the value of x
we know that
-----> form a straight line
substitute the values
step 2
Find the measure of angle BCD
substitute the value of x
Answer: 82.40
Step-by-step explanation: I took the quiz
Y is greater than or equal to 0
First, you add up the total number of students because we would base our percentage one this.
Total number of students = 1+4+5+10+20+10+5
Total number of students = 55
Now, let's count how many of them got a score of more than 70. For this, you would only count the students belonging to 70-under 80, 80-under 90 and 90-under 100.
Students who got more than 70 = 20+ 10 + 5 = 35
Therefore the percentage is equal to:
Percentage = 35/55 * 100 = 63.64%
Wouldn’t the answer be 8 and 3
