(Ex 6.2 #4) A car runs $x$ km in 4 hours and $(x + 120)$ km in 5 hours. Average speed does not exceed 100 km/hour. The i

Question

(Ex 6.2 #4) A car runs $x$ km in 4 hours and $(x + 120)$ km in 5 hours. Average speed does not exceed 100 km/hour. The inequality is...

Accepted Answer

$\frac{x + (x+120)}{4 + 5} \le 100$

Answer

$\frac{x + (x+120)}{4 + 5} \ge 100$

Answer

$x + (x + 120) > 100$

Answer

$x \le 100$

(Ex 6.2 #4) A car runs xxx km in 4 hours and (x+120)(x + 120)(x+120) km in 5 hours. Average speed does not exceed 100 km/hour. The inequality is...