Question

PLS HELP I NEED THIS ASAP: When hanging pictures, Leslie put 18 hangers on the wall at twenty centimeter intervals. The hanger at each end was 35 com away from adjoining walls. How wide was Leslie's rom?

Answer 1

Answer: 410 centimeters

Step-by-step explanation:

1. You know that she put 18 hangers on the wall at 20 centimeters intervals, therefore, the number of spaces is:

$spaces=n-1$

Where n is the number of hangers put on the wall.

2. Then, you have that the number of spaces is:

$spaces=18-1=17$

3. So, the width of Leslie's room can be calculated as following:

$width=(2*35cm)+(17*20cm)\\width=410cm$