glawson2
06.12.2021 •
Mathematics
thirty tickets were sold for a concert, some at 60 cent and the rest is at $1. If the total was raised to $22, how many had the cheaper tickets.
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Ответ:
B.) 32
Step-by-step explanation:
Given parallelogram ABCD, diagonals AC and BD intersect at point E, AE = 2x, BE=y+10, CE=x+2 and DE=4y - 8, the length of BD is 32.
BD = 2×BE = 2×16