Answer:
x = - 2
Step-by-step explanation:
- 8 = - 2x - 12
- 8 + 12 = - 2x - 12 + 12
- 2x = 4
- 2x ÷ - 2 = 4 ÷ - 2
x = - 2
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Irrational will be the answer
8 - 7x - 3 = 19
5 - 7x = 19 |subtract 5 from both sides
-7x = 14 |divide both sides by (-7)
x = -2
Answer:
1) 12.7 cm
2) 8580.24 cm³
Step-by-step explanation:
given,
Radius of moon(Rm) = 1700 Km Radius of Earth(Re) = 6350 km
Model radius of Moon(Mm) = 3.4 cm
2) Volume of earth model =
= 
= 8580.24 cm³
1) radius of earth = 
= 
= 12.7 cm
