You stop at 2 decimal points. If the 3rd decimal is bigger than 5, add 1 to the 2nd and if it's less than 5, keep it as it is.
For example:
2.663 --> 2.66
6.788 --> 6.79
The best way for him to check his answer would be to simply plug in the value found for x into the equation.
4(2) - 6 = 2
8 - 6 = 2
2 = 2
Answer:
Around 7830 dollars
Step-by-step explanation
Times 15,000 by 0.85, you'll get 12,750. Times each product by 0.85 and you'll get around 7830 dollars
Answer: -16
Step-by-step explanation:
2(x+4)
———— = 8
- 5
2x+8
——— = 8
-5
2x+8
-5 • ——— = 8(-5)
-5
2x+8 = -40
2x = -32
x = -16
