t2020
t2020 t2020
  • 13-11-2017
  • Mathematics
contestada

I need help on 17 and 18 please help

I need help on 17 and 18 please help class=

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Cyu437
Cyu437 Cyu437
  • 13-11-2017
2/7 = 0.29 ---- rounded up  plus the 7 = 7.29

(-2 3/7)   3/7 = 0.43 ---rounded up ---- plus the -2 = -2.43

7.29 - (- 2.43) = 9.72 -----  negative and negative equal posirive


#18
-2.45 - (-3.94) = 1.49
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