Mathematics, 30.11.2020 23:40 kallie862

The points P, Q, R and S all lie on the same line segment, in that order, such that the ratio of PQ : QR: RS is equal to 1:4:1. If PS = 18, find QR.

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The points P, Q, R and S all lie on the same line segment, in that order, such that the ratio of PQ...

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