In a comunity there are 3 diferent kinds of race:70 white, 350 black, 50% are japonese.
a) How many people are in this comunity?
b)How much paponese people are in this same comunity?
2007-01-14 01:14:22 · 17 answers · asked by "D" 2 in Science & Mathematics ➔ Mathematics
840
420
2007-01-14 01:17:35 · answer #1 · answered by ? 6 · 0⤊ 0⤋
If there are only 3 races, and 50% are Japanese, the the Japanese total is equal to the sum of white + black, which would be 420. Then the total of all races would be 840.
2007-01-14 09:18:07 · answer #2 · answered by crazydave 7 · 0⤊ 0⤋
let the total no. of persons be x
japaneese=50%
that means that other part is 50%
but other part is sum of whites and blacks
=70+350=420
japaneese=420
tOTAL people=420+420=840
2007-01-14 10:11:50 · answer #3 · answered by srinu710 4 · 0⤊ 0⤋
a. 370+70+50%x=x
420=50%x=> x=840
b. 840:2= 420
2007-01-14 09:21:15 · answer #4 · answered by raluka_y28 2 · 0⤊ 0⤋
A.840
B.420
2007-01-14 09:23:03 · answer #5 · answered by ad121ana 3 · 0⤊ 0⤋
A) 840 persons
B) 420 japanese
2007-01-14 09:18:31 · answer #6 · answered by Juan Carlos 5 · 0⤊ 0⤋
the first answer is 840 people. second is 420.
I'm so sorry if the answers are wrong. but I still tried my best. I didn't study this till now
2007-01-14 09:20:21 · answer #7 · answered by Anonymous · 0⤊ 0⤋
a. 840 people
b. I suppose you mean "japonese people" ? 420
2007-01-14 09:16:45 · answer #8 · answered by ramshi 4 · 0⤊ 0⤋
(a) 840 of all races.
(b) 420 japanese.
2007-01-14 09:27:25 · answer #9 · answered by muzzash 2 · 0⤊ 0⤋
840
420
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2007-01-14 09:23:25 · answer #10 · answered by SAMUEL D 7 · 0⤊ 0⤋
a)840
b)420
but your teacher will still want you to show your work. good luck
2007-01-14 09:18:45 · answer #11 · answered by Anonymous · 0⤊ 0⤋