Question

a sprayer discharges 600cc of herbicide in 45 sec. For what period of the time should be discharged in order to apply 2000 cc of herbicide​

Answer 1

We have:

`$\frac{600\text{ cc}}{45\text{ seconds}} = \frac{2000\text{cc}}{x \text{ seconds}}`

Cross multiplying, we get:

`$600x = 90000$`

We divide both sides by 600 and get:

`$(600x)/(600) = (90000)/(600)$`

`$x=\boxed{150}$`

It takes 150 seconds (2 minutes and 30 seconds) for the sprayer to disperse 2000 cc of herbicide. Hope this helps!