A game room has a floor that is 100 feet by 20 feet. A scale drawing of the floor on grid paper uses a scale of 4 units:5 feet. What are the dimensions of the scale drawing? Enter your answer as length by width. The scale drawing is units by units.

80 x 16

Explanation:

4           x                               4            x

 =                                =    

5          100                             5         20

400 / 5 = 80                            80 / 5  =   16

the answer is:

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hope it !