exam
Maths Puzzle
Numerical Ability
write a formula to solve:
you have $6.70 in quarters and dimes, a total of 46 coins, how many quarters and how many dimes
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exam Other Question
I need to solve the following systems of three equations
x+y+z=5
x-y+z=1
x-z=y+3
Thank you so very much
x-3y=0
xy=27