A coupe of hikers parked the car and hike into the forest to a campsite. The next morning, they head out on hike from their campsite walking at a steady rate. The craft shows their distance in miles from the car on the day of their high after a number of hours. Write an equation that describes the relationship between X (number of hours) and y (distance)

A coupe of hikers parked the car and hike into the forest to a campsite. The next morning, they hea

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Ответ:

arletsolis23p2cjls

18.11.2020

Mathematics

$\large\boxed{1.\overline{21}=\dfrac{40}{33}}$

Step-by-step explanation:

$x=1.\overline{21}\\\\x=1.212121...\qquad\text{multiply both sides by 100}\\\\100x=121.212121...\\\\\text{subtract x from 100x}\\\\100x-x=121.212121...-1.212121...\\\\99x=120\qquad\text{divide both sides by 99}\\\\x=\dfrac{120}{99}\\\\x=\dfrac{120:3}{99:3}\\\\x=\dfrac{40}{33}$

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