contestada

44. Together two computers cost $2700 per year to rent. If one costs twice as much as the other, what is the monthly cost of the most expensive one? (1) $ 75 (2) $ 150 (3) $ 225 (4) $ 900 (5) $1800

Respuesta :

If the cost of the rent of a computer is x, then we can write:

x + 2x = 2700, because the second computer cost twice the first one

using the equation:

x + 2x = 2700

3x = 2700

x = 2700/3 = 900

x = 900

So, the cost of the first computer is 900

and the cost of the second computer is 2(900) = 1800

The most expensive is 1800 per year

So the monthly cost is 1800/12 = 150

So the answer is option 2) $150

Otras preguntas