the question is share 171 in the ratio 3:7:9?
回答 (7)
2018-07-31 3:34 pm
1st part = 171 × [3/(3 + 7 + 9)] = 27
2nd part = 171 × [7/(3 + 7 + 9)] = 63
3rd part = 171 × [9/(3 + 7 + 9)] = 81
2nd part = 171 × [7/(3 + 7 + 9)] = 63
3rd part = 171 × [9/(3 + 7 + 9)] = 81
2018-07-31 3:56 pm
You are being asked to divide the total amount into parts 3/19, 7/19 and 9/19
divide 171/19 to get 1/19th and then multiply up accordingly.
27, 63 and 81
divide 171/19 to get 1/19th and then multiply up accordingly.
27, 63 and 81
2018-08-03 12:43 pm
27:63:81.
2018-07-31 6:46 pm
27, 63, and 81.
2018-07-31 5:37 pm
They are (3*9) = 27, (7*9) = 63 and (9*9) = 81 respectively which all add up to 171
2018-07-31 3:46 pm
The trick with ratios is to add them together to find the number of parts:
3 + 7 + 9 = 19
1 part of 171= 1/19 of 171 = 171/19 = 9
3 parts = 9 x 3 = 27
7 parts = 9 x 7 = 63
9 parts = 9 x 9 = 81
Check total = 171
3 + 7 + 9 = 19
1 part of 171= 1/19 of 171 = 171/19 = 9
3 parts = 9 x 3 = 27
7 parts = 9 x 7 = 63
9 parts = 9 x 9 = 81
Check total = 171
2018-07-31 3:29 pm
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