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Pablo has $3.15in dimes and guaters. How many guaters and dimes does he have?
4 answers
number of "guaters" --- x
number of dimes ------ y
25x + 10y = 315
5x + 2y = 63
y = (63 - 5x)/2 , both x and y must be whole numbers
so 63-5x must be even to be divisible by 2
then x can only be an odd number
x= 1 , y = 29
x = 3 , y = 24
x = 5 , y = 19
x = 7 , y = 14
x = 9 , y = 9
x = 11 , y = 4
no unique solution, I have 6 different ones, each one works
number of dimes ------ y
25x + 10y = 315
5x + 2y = 63
y = (63 - 5x)/2 , both x and y must be whole numbers
so 63-5x must be even to be divisible by 2
then x can only be an odd number
x= 1 , y = 29
x = 3 , y = 24
x = 5 , y = 19
x = 7 , y = 14
x = 9 , y = 9
x = 11 , y = 4
no unique solution, I have 6 different ones, each one works
Pablo has $3.15 in quarters and dimes. he has more quarters than dimes. How many quarters and dimes does he have
IT SAYS MORE "Guaters" THAN DIMES!!!!!!!!!!!!!