Question

percent problems Plz slove and show work

1)The value of U.S exports to China increased from $1480 million in 2011 to $2768 million in 2012. What was the percentage increase?

2) If 120 million roses were sold on Valentine's Day, and 75% of the roses were red, how many red roses were sold on Valentine's Day?

3)Growing up, Joe lived in a small town. When he left for college, the population was 840. The population has grown by 5% after Joe's first year of college. What is the new population?

Answer 1

2) x÷120*100=75%

x÷6*5=75

5x=75*6

x=75*6÷5

x=90

90 roses sold on Valentines day