29.) Robbie decided to decorate his room. The total area of the walls was 78 sq m. If one roll of wallpaper can cover 5 sq m of the wall, how many rolls of wallpaper did Robbie need? Express your answer as a decimal rounded to the nearest tenths.
Step-by-step explanation:
To find the number of rolls Robbie needs, divide the total area of the walls by the coverage of one roll of wallpaper.
number of rolls = total wall area/coverage per roll
number of rolls= 78 sq m/, 5 sq m/roll
Number of rolls≈15.6
Rounded to the nearest tenth, Robbie would need approximately 15.6 rolls of wallpaper. However, since you can’t have a fraction of a roll, you would typically round up to ensure you have enough wallpaper. Therefore, Robbie would need 16 rolls of wallpaper.
(Omg)
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