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I did that question before
Answer:
x=30
y=17
Step-by-step explanation:
We know that 6x+9 = 129 since they are vertical angles
6x+9 = 129
Subtract 9 from each side
6x+9 -9 =129-9
6x = 120
Divide by 6
6x/6 =120/6
x = 20
3y+129 =180 since they make a straight line and straight line are equal to 180 degrees
3y+129 =180
Subtract 129 from each side
3y+129-129=180-129
3y = 51
Divide by 3
3y/3 = 51/3
y = 17
Answer:
Part A-7.5%
Part B-?
Part C-400 clocks
Step-by-step explanation:
part a-Write a sample ratio.-Divide the numerator by the denominator and multiply by 100.
part B-Use the sample ratio.-Multiply the sample ratio by the total number of clocks in the population.
Part C-Write a sample ratio.-Multiply the sample ratio by the total number of clocks in the population.