To find how much Lidia would earn for 1/2 hour of babysitting at the same rate, we can use the unitary method.
We know that Lidia charged $27.00 for 3 hours of babysitting. So, her rate per hour of babysitting can be calculated as:
Rate per hour = Total charge / Number of hours
Rate per hour = $27.00 / 3 hours
Rate per hour = $9.00/hour
Now, we need to find how much Lidia would earn for half an hour of babysitting. Since her rate per hour is $9.00, her rate per half an hour would be half of that:
Rate per half hour = Rate per hour / 2
Rate per half hour = $9.00/hour / 2
Rate per half hour = $4.50/half hour
Therefore, Lidia would earn $4.50 for half an hour of babysitting at the same rate.
Answers & Comments
To find how much Lidia would earn for 1/2 hour of babysitting at the same rate, we can use the unitary method.
We know that Lidia charged $27.00 for 3 hours of babysitting. So, her rate per hour of babysitting can be calculated as:
Rate per hour = Total charge / Number of hours
Rate per hour = $27.00 / 3 hours
Rate per hour = $9.00/hour
Now, we need to find how much Lidia would earn for half an hour of babysitting. Since her rate per hour is $9.00, her rate per half an hour would be half of that:
Rate per half hour = Rate per hour / 2
Rate per half hour = $9.00/hour / 2
Rate per half hour = $4.50/half hour
Therefore, Lidia would earn $4.50 for half an hour of babysitting at the same rate.