Complentary angles add to 90 degrees
a and b are complentary
a+b=90
a=7x+4
b=4x+9
so
7x+4+4x+9=90
combine like terms
11x+13=90
minus 13 both sides
11x=77
divide both sides by 11
x=7
m a =7x+4=7(7)+4=49+4=53
m b=4x+9=4(7)+9=28+9=37
angle a measures 53 degrees
angle b measures 37 degrees
The range of a data set is the difference between the largest and the smallest value in the set.
Here the range is: r = 62 - 25 = 35
Answer:
Comment if you ready for me to give you an answer
Also message me please.
Step-by-step explanation:
Answer:
x=5, y=-4
Step-by-step explanation:
:)
360 kilometers is 24 percent of 1500 kilometers. Hope it help!
