Four out of 5 customers ride their bikes. On Saturday there were 18 customers who came in without riding their bikes. How many rode their bikes?

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2