40% of what number is 108?

1 Answer
Apr 12, 2016

Answer:

You must write a proportion.

Explanation:

#108/x = 40/100#

#x = (108 xx 100)/40#

#x = 270#

40% of 270 is 108.

Practice exercises:

Below is the graph of average temperatures by month in Flagstaff, Arizona. Find the percentage of months where the nighttime temperature is less than #40˚ F#

enter image source here

Good luck!