+0  
 
0
85
1
avatar

There are 81 cars in a parking lot, which are all Acuras, Beetles, or Camrys. There are half as many Acuras as Beetles. The number of Camrys is 80% of the number of Acuras and Beetles together. How many of the 81 cars are Beetles?

 Jun 8, 2020
 #1
avatar+26807 
+1

b

a = 1/2 b

c = .8 ( 1/2 b + b)    summed = 81

 

b + 1/2 b   + .8 (1/2b + b) = 81     solve for b

 Jun 8, 2020

23 Online Users

avatar