Answer:
The sister is 20
Step-by-step explanation:
The sister is 4 years younger than the girl.
if you had 17 over 4 that would be 17/4
how many times can 4 go into 17?
how ever many timer it goes in will be your whole number.
in this case its 4
there is 1 left over so it would be the numerator
17/4 would equal 4 1/4
Answer:
A. Angle A=80°
Angle I= 30°
B.y=6.39
x=9.43
Step-by-step explanation:
If x is the number of sides of the regular polygon, then the sum of the interior angles is (x - 2) * 180 = 56 * 90. Solving for x gives 30 for the number of sides of the regular polygon.
To get the central angles measure, divide 360 by 30 to get 12 degrees for the measure of one of the 30 central angles.
Answer: 12 degrees
Answer:
-61.75
Step-by-step explanation:
20.25 - 93+11=-61.75