fhishy11
30.03.2020 •
Mathematics
12)
Kate skates at a speed of 10 miles per hour.
She skates a course of 25 miles.
If she increases her skating speed by 5 miles per hour, how much less time will she
take?
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Ответ:
I guess the answer is 0.4x+3.2=y (0.4 equals to 2/5 ) .