Question

Tess needs to buy sand for her children’s playground. The sand costs $8 per ton, and there is a delivery cost of $50 with each order. What types of numbers are possible in the range?

Options
All positive rational numbers less than 8
All positive rational numbers greater than 50
All positive rational numbers
All rational numbers

Answer 1

All positive rational numbers greater than 50

Explanation:

Since the delivery cost is fixed per trip, the cost incurred can be represented by the equation

y(x)=8x+50 so in case Tess wants only 1 tone, the cost will be y(x)=8(1)+50=58

Therefore, it's proper to conclude that all numbers in the possible range are positive rational numbers greater than 50