Question

After it snows, it takes Maria and her little sister Anita 1/2 of an hour to shovel the snow off of the sidewalks on their street. This is 2/3 of the time it takes Maria to do the same job by herself.

How long does it take Maria do this job by herself?

Answer 1

It takes Maria 45 minutes to shovel the snow by herself.

Step-by-step explanation:

To find how long it takes Maria to shovel the snow by herself, we can set up the following equation:

1/2 = (2/3) * x

To solve for x, we can multiply both sides of the equation by the reciprocal of (2/3), which is (3/2).

1/2 * (3/2) = (2/3) * x * (3/2)

3/4 = x

So, it takes Maria 3/4 of an hour, or 45 minutes, to shovel the snow by herself.