Problema Solution
Mary’s hourly wage is twice that of John’s. John’s and Dennis’ hourly wages together total $60. If Dennis earns 1/3 of John’s rate, what does Mary make per hour?
Answer provided by our tutors
Let
x = Mary's wage
x/2 = John's wage
(1/3)(x/2) = x/6 is Dennis's wage
John’s and Dennis’ hourly wages together total $60:
x/2 + x/6 = 60
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click here to see the equation solved for x
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x = $90
Mary makes $90 per hour.