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Please help 20 an 21
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Please help 20 an 21

Please help 20 an 21-example-1
User Bsayegh
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20.
180 = 1x + 2x
180 = 3x
60 = x
m<2 = 2x
m<2 = 2 (60)
m<2 = 120
21.
90 = x + 9x
90 = 10x
9 = x
m <1 = 9
m <2 = 81
Your welcome.
User Kayvan Tehrani
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