Question

Carys calculates the total amount E,in dollars,that she earns for working h hours using the equation E=10h. At that rate how many hours does it takes Cary to earn one dollar.

Answer 1

Given,

The equation of earning of Carys, E=10h

Now, we want to calculate h for E=1 dollar.

So, put E=1 in the given equation,

1=10h

Divide both side by 10

1/10=10/10h

10 gets cancel out on right hand side.

1/10=h

Therefore, Cary takes 1/10 hours to earn one dollar.