in 1996, the civilian labor force of the united states included 127 million people, & 5% were unemployed. how many people in the civilian labor force were unemployed?
an inspector examined 200 computer componants & rejected 19% of them. how many were rejected?
a serving traymade of brass weighs 21 ounces. this brass is an alloy of 70% copper & 30% tin. what is the weight of copper in the tray?
twenty-nine of the first forty-two presidents were lawyers. wat percentage of these presidents were lawyers?[giver answer to the nearest 1%]
2007-07-20 16:26:39 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1) 5/100 X 127,000,000
=6350000
2) Multiply .19 by 200 (.19=19%)
=38
3) Multiply .7 (70%) by 21
=14.7 oz
4)69%
2007-07-20 16:32:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Answer: 127,000,000 * 5% = 6,350,000 unemployed
Answer: 200 * 19% = 38 rejected computers
Answer: 21 * 70% = 14 7/10 ounces of copper
Answer: 29 / 42 = 69% lawyer presidents
2007-07-20 23:53:39 · answer #2 · answered by Jun Agruda 7 · 2⤊ 0⤋
look at it this way 5 of every 100 people were unemployed so find out how many groups of 100 in 127 million then multiply by 5 since 5 in each group were unemplyed, mathematically that is 127,000,000/100*5=127,000,000*.05
=6,350,000
for every 100 computers 19 were bad so 200would have 38 or 200*0.19=38
do you see the pattern?
the rest are done the same way, try them and see if you get
6.3 for the third part
69
2007-07-20 23:39:07 · answer #3 · answered by 037 G 6 · 1⤊ 0⤋
5% of 127 million people were unemployed.
5% = 0.05
0.05 x 127,000,000 = 6,350,000
19% of 200 computer componets were rejected. This is the same problem with different numbers-
0.19 x 200 = # rejected
0.70 x 21 = ounces of copper
29/42 were lawyers = 0.69 (69%)
2007-07-20 23:35:35 · answer #4 · answered by skipper 7 · 0⤊ 0⤋
127,000,000 x .05(%)=6,350,000 unemployed
200 x .19=38 rejected
21 x .70=14.7 oz.s
OR, 29 is 69% of 42
is your homework done yet???
2007-07-20 23:41:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i don't do my own homework, i'm not gonna do yours
2007-07-20 23:34:55 · answer #6 · answered by alexandra 3 · 0⤊ 0⤋