Halat011304 Halat011304
  • 02-11-2019
  • Mathematics
contestada

please help me for 30 points

please help me for 30 points class=

Respuesta :

stargaming136
stargaming136 stargaming136
  • 02-11-2019

Starter Questions:

A)

1.x=20/4=5

2.x=54/9=6

3.x=7 × 56 =392

4.x=12×60=720

B)

1.5a=5×a=5×9=45

2.3a+4=3×a+4=3×9+4=31

3.a÷3=9÷3=3

4.10×a-12=10×9-12=90-12=78

5.a²-11=9×9-11=81-11=70

c)

1 . 4×4+2×8=16+16=32

2.10c-3b=10x8-3x4=80-12=68

3.bc=8x4=32

4. -c+b=-8+4=4

5. 2(b+c)=2(4+8)=8+16=24

Answer Link

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