Question

I took notes and went back through the lesson but I can't get it. Help, please!!!

Answer 1

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Explanation:

▪Picture 1. x = 28

`(x)/(42) = (10 + x)/(57) \\ 42(10 + x) = 57x \\ 420 + 42x = 57x \\ ( \: \: \: \: \: \: \: \: \: \: \: - 42x = - 42x)/( (420)/(15) = (15x)/(15) ) \\ \\ 28 = x`

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▪Picture 2. I don't know what in trying to solve.

▪Picture 3.

•ABC = 50

•DEF = 95

•GHI = 65

•JKL = 55

▪Picture 4. I dont know how to do that