Mean is average
triangle has 3 sides
mean of its sides is
if the sides are a,b,c meause then mean of the sides is (a+b+c)/3=mean=18
perimiter=a+b+c
therefor
perimiter/3=18
multiply both sides by 3
perimiter=54 yardds
first notation: 8/1 (8 over 1)
and
second notation: 8 to 1
Answer:
Its just a math rule ?
Step-by-step explanation:
negatives always cancel each other out in multiplication and division.
-1 * -1 = 1
Hope this helps! :)
please mark brainiest
Answer:
Percent change is 81.25%
Step-by-step explanation:
To find percent change we find the difference of both numbers
Then we divide by the original number.
To get percentage we multiply by 100
Percent change =
Percent change =
= 
= 81.25
Percent change is 81.25%
Answer:
6r+24
Step-by-step explanation:
2(r+3)=2r+6
2(2r+9)=4r+18
(2r+6)+(4r+18)=6r+24