To across the road.......
Answer: x= -3
Step-by-step explanation: First you add 4.2x to both sides to get: 1.8+0.5x= 0.3. Then you subtract 1.8 from both sides and get: 0.5x=-1.5. Lastly, you divide by 0.5 both sides and get x=-3
Answer:
1000
Step-by-step explanation:
Lets just say x is the bigger number. We can create two equations.
x + y = 70
x - y = 30
If we add these equations together, we get that:
2x = 100
and that
x=50
Plugging x back into any of the equations gets us that y = 20, so xy = 20*50 = 1000
Therefore (87)₁₀ = (1010111)₂
Take any base 10 number. Divide it by 2.
