ste78
05.05.2020 •
Mathematics
What is the first step in solving
x - 1/3 = 1/3?
Solved
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Ответ:
Step 1: Simplify both sides of the equation.
Step-by-step explanation:
x+−13=13
Ответ:
since time=distance/speed
then:
Time taken to swim 16km will be:
16/(x+3)
Time taken to swim 4km will be:
4/(x-3)
thus
16/(x+3)=4/(x-3)
16(x-3)=4(x+3)
16x-48=4x+12
16x-4x=12+48
20x=60
x=60/20
x=3 km/h