martinez78

29.09.2021 • 

Mathematics

Mike left Mei's house and traveled toward the recycling plant at an average speed of
57 mph. Eugene left sometime later
traveling in the opposite direction with an
average speed of 60 mph. After Mike had
traveled for five hours they were 585 mi.
apart. Find the number of hours Eugene
traveled.
A) 2 hours B) 5 hours
C) 4 hours D) 1 hour

Ответ:

AvantiA

12.06.2021

Mathematics

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X+ 2 =  √(3x + 10)
in the form:
x + a =  √(bx + c)

if we let x = 7
7 + a =  √(7b + c)
squaring both sides
7 + 14a + a² = 7b + c

assume a = 1
7 + 14 + 1 = 7b + c
22 = 7b + c
assume a = 2
39 = 7b + c

there are no solutions to the the two equations.

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