If you are looking at the total of just people who have just bikes that's 40 and people who have just skateboards that's 10 so 30 but if its the total of bikes that's 72 and the total of skateboards that's 42 which is also 30. My best guess seeing as i don't know what math class you are in is 30.
Answer:
( x+ 18) + x + ( x + 18 ) + x = 4x + 36
x + 9 + x + 9 + x + 9 + x + 9 = 4x + 36
Step-by-step explanation: The perimeter of a figure is found by adding the lengths of the sides.
This is really easy.
x-4=8
what it really is asking you is the value of x
Isolate x
take 4 to the other side. not -4 but positive 4
x=12
A. The answer is 494.6 rounded.
b. She most likely did not add 417.62 to 76.9
It is a very low probability because forty percent is purple