You have 30 quarters. You find 20% more quarters in your room. Then you go shopping and spend 75% of the total number of quart
2 answers:
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Let
x----------> the first mechanic rates
y----------> the second mechanic rates
we know that
x+y=165
15x+5y=1775
using a graph tool
see the attached figure
the solution is
x=95
y=70
the answer is
the rates of the first mechanic is 95
the rates of the second mechanic is 70
x----------> the first mechanic rates
y----------> the second mechanic rates
we know that
x+y=165
15x+5y=1775
using a graph tool
see the attached figure
the solution is
x=95
y=70
the answer is
the rates of the first mechanic is 95
the rates of the second mechanic is 70