A journey takes 1 hour and 30 minutes. Half the distance is travelled at an average speed of 90 km/h, while the remaining distance is covered at an average speed of
100 km/h. How long is the journey to the nearest kilometre?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

What is the expression in factored form? 3x^2 + 18x + 24 a. 3(x+2)(x+4) b. 3(x-2)(x+4) c. 3(x-2)(x-4) d. 3(x+2)(x-4)

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?