Question

9. If a dozen erasers cost 54,how many erasers can be bought for 99.
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Answer 1

Answer:

445.5

Step-by-step explanation:

Let the amount of one eraser be "a"

so 54/12 = 4.5 (cost/amount of one eraser)

Therefore cost of 99 erasers= 99*4.5

                                               = 445.5

Answer 2

Answer:

22

Step-by-step explanation:

No. of erasers in a dozen = 12

Cost of the dozen erasers = 54

Cost of 1 eraser = 54 ÷ 12 = 4.5

                                            4.5 x $x$ = 99

                                           $x$ = 99 ÷ 4.5

                                             $x$ = 22