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adell [148]
3 years ago
9

Solve using proportions

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0
4:3 means 4/7 of the class are men

4/7 of 490 is 280
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In 1)

Line 1 has following coordinates.
(0,0) ; (1,-2) ; (2,-4)

Line 2 has following coordinates.
(0,0) ; (1,0.5) ; (2,1)

Line 3 has following coordinates.
(0,1) ; (1,1.5) ; (2,2)

If you'll draw the lines, you'll observe that Line 1 is perpendicular to Line 2 and Line 3 and Line 2 and Line 3 are parallel to each other.

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