Question

1. use the bar graph. astronauts installed 15 new tiles on the outside of the space station. they spent 390 minutes on the task. each tile took the same amount of time to install. draw a bar in the graph to show the time needed to install a tile. explain.
2. how much longer does an astronaut take to install a light than to install a cable?

Explanation:

Step1: Calculate time per tile

Total time is \(390\) minutes for \(15\) tiles. Time per tile \(t=\frac{390}{15}\).

Step2: Simplify the division

\(390\div15 = 26\)

for Question 12:

Step1: Identify times from the graph

Assume time to install a cable is \(12\) minutes (from the bar labeled "Install a Cable") and time to install a light is \(24\) minutes (from the bar labeled "Install a Light").

Step2: Calculate the difference

Difference \(d = 24 - 12\)

Answer:

The time needed to install a tile is \(26\) minutes.