Sets Tool Boat
Sets Tool Boat
Urgent math problem help! 10 points?
Only 3 math questions, I know i know....I shouldn't be freeloading off a site like this but i'm really weak in problem solving.
If math comes easily to anyone here, can you please just set up the formula and ill solve it. THANKS
1. In 2005, the U.S.A alone accounted for 23.5% of the world's total energy consumption, using 105.3 quadrillion British thermal units. what was the world's energy consumption in 2005?
2. According to the Insurance Information Institute, 12% of the 4,969 recreational boating accidents in 2005 involved alcohol use. How many boating accidents were alcohol related?
3. A vendor sells tool chests at a flea market for $65. If she makes a profit of 30% on each unit sold, what does she pay the manufacturer for each tool chest?
1. 23.5% is expressed as 0.235. So you want to find out how much the total world consumption was. You can set it up like this..
0.235x = 105.3
x =105.3/0.235
x = ?
2. Similar here as above.....0.12(4,969) = ?
3. Even thought the problem tells you 30%, you are actually looking for the other 70% as your answer because it asks you how much she pays the manufacturer. If she makes 30% profit, she pays the manufacturer 70%. So it is 0.70(65) = ?
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