Question 210716
first day she walks x blocks
second day x + 2
third day x + 4
fourth day x + 4
fifth day x + 4
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total is 5x + 14
equation is 5x + 14 >= 70
subtract 14 from both sides of this equation to get:
5x >= 56
divide both sides of this equation by 5 to get:
x >= 11.2
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she must walk greater than or equal to 11.2 blocks the first day to reach her goal.
assume she walks exactly 11.2 blocks the first day.
then her total walking based on the formula would be:
first day 11.2
second day 13.2
third day 15.2
fourth day 15.2
fifth day 15.2
total walked is 11.2 + 13.2 + (3 * 15.2)
this equals 24.4 + 45.6 which equals 70.0
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any number of blocks over 11.2 on the first day will result in a total greater than 70 blocks.
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