Factorise 6x² -5x -21
1 answer:
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Andre can complete 1.5 facts in one second.
Step-by-step explanation:
Given,
Number of multiplication facts completed in 90 seconds = 135
Therefore;
90 seconds = 135 facts
Dividing both sides by 90 to fins the facts per second
Andre can complete 1.5 facts in one second.
Keywords: unit rate, division
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