I need help on number 10 please
2 answers:
JL and MK have the same value, because they link heights and lengths with the same proportion: Height KL = Height JM ; Length ML = Length JK. So you can conclude that you can do: JL = MK -> 2x + 5 = 7x - 40 -> 5x = 45 -> x = 45/5 -> x = 9 MK = ? -> MK = 7x - 40 -> MK = 7.(9) - 40 -> MK = 63 - 40 -> MK = 23
JL=MK, therefore 2x+5=7x-40 5=5x-40 45=5x 9=x 7(9)-40= 63-40=23
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