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The area of a square rug can be represented by the expression of 100x²+60x+9.
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It took him 2.6 hours to reach the top
Data;
- Uphill = 6km
- Downhill = 4km
- Total time taken = 8 hours
Let us calculate the speed during uphill and downhill
Since the time it took them to descend is twice the time it took them to ascend,
- Let x represent the time taken to ascend
From the calculation above, it took him 2.6 hours to reach the top.
Learn more on speed here;
