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

Otras preguntas

Rank the SN2 reaction rate of the following species, from fastest to slowest. CH3CH2OH CH3CH2I CH3CH2Cl
Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called .
A 40 g block of ice is cooled to -69°C and is then added to 590 g of water in an 80 g copper calorimeter at a temperature of 22°C. Determine the final temperatu
Which writer coined the phrase ships that pass in the night?
The equations in the system below are parallel. How many solutions does the system have? no solution one unique solution two solutions an infinite number of sol
Natural depression on the earths surface
−2x+30>4x+12-2x+30>4x+12 Express the set using interval notation.
The typical orchestra of the classical period consisted of
Heat is transferred to the Earth's surface through the process of... conduction convection radiation reflection
What is a substance used to decrease the rate of a chemical reaction