Step 1
Use the ratio of the number to the percentage to get the required answer.
Where,
Step 2
Get the required answer
The number of students that got B or a better grade on the test = 19 students rounded to a whole number.
A always a euilateral triangle is a regular polygon
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
It is 78 because you can draw a transversal with the line that 79 is on, and 79+23+x=180. so 180-79-23=78 therefore 78=x
understand?
