About 189,600 patents were issued by the U.S. government in 2003. This was a 77% increase over the number of patents issued in 1993. How many patents were issued in 1993?
OK, so the number of patents issued in 2003 is 177% of the number of patents issued in 1993. Set it up as a proportion:
Use the equation: new / old = new % / 100 (old %)
189,600/x = 177/100 cross multiply
177x = 18,960,000 divide by the coefficient\
x = 107,119 rounded to the nearest whole number
ans
189600 x 100/177 (100 % + increase 77%)
so the ans is 10508.something
regards
Comments
OK, so the number of patents issued in 2003 is 177% of the number of patents issued in 1993. Set it up as a proportion:
Use the equation: new / old = new % / 100 (old %)
189,600/x = 177/100 cross multiply
177x = 18,960,000 divide by the coefficient\
x = 107,119 rounded to the nearest whole number
ans
189600 x 100/177 (100 % + increase 77%)
so the ans is 10508.something
regards