Duke wants to hire someone to re-tile his bathroom. The research he found for three local tilers is presented in the table below. He was able to find the average area of their tiling jobs and the time it took the tilers to complete the job.

Tiler Area Tiled
(square feet) Time
(hours:minutes)
Toni's Tiles 803 2:12
Bob's Bathrooms 1,460 4:00
Rhonda's Restroom Redos 753 1:30
Calculate the unit rate for each tiler above to determine if proportional relationships exist.

The rates at which Toni's Tiles and Bob's Bathrooms tile are ?
to one another.

The rates at which Toni's Tiles and Rhonda's Restroom Redos tile are ?
to one another.

The rates at which Bob's Bathrooms and Rhonda's Restroom Redos tile are ?
to one another.

Two items are in a proportional relationship if they ?
the same unit rate.

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oeerivona oeerivona · Answer 1 · 2020-08-12T11:08:52+02:00

Answer:

Toni's Tiles and Bob's Bathrooms are in a proportional relationship as they have the same unit rate

Step-by-step explanation:

The given parameters are;

, Area Tiled (ft²) Time (Hr:min)

,

Toni's Tiles, 803 2:12

Bob's Bathrooms, 1,460 4:00

Rhonda's Restroom Redos 753 1:30

The unit rate for each tiler

Toni's Tiles = 803/2:12 = 803/(2×60 + 12) = 6.083 ft²/min

Bob's Bathrooms = 1460/(4×60) = 6.083 ft²/min

Rhonda's Restroom Redos = 753/(60 + 30) = 8.37 ft²/min

Therefore we have;

The rates at which Toni's Tiles and Bob's Bathrooms tile are to one another = 6.083 to 6.083 = 1:1

The rates at which Toni's Tiles and Rhonda's Restroom Redos tile are to one another = 73/12×30/251 = 365:502

The rate at which Bob's Bathrooms and Rhonda's Restroom Redos tile are to one another = 73/12×30/251 = 365:502

Therefore, Toni's Tiles and Bob's Bathrooms are in a proportional relationship as they have the same unit rate.