SOLUTION: John has nine dollars in change. He has twice as many quarters as dimes ??
A) how many dimes and quarters dies John have
Algebra.Com
Question 940900: John has nine dollars in change. He has twice as many quarters as dimes ??
A) how many dimes and quarters dies John have
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
John has nine dollars in change. He has twice as many quarters as dimes ??
===========
Is that a question?
Does he have twice as many quarters as dimes? 2 question marks makes me wonder.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
John has nine dollars in change. He has twice as many quarters as dimes ??
----------------------
A) how many dimes and quarters does John have?
-------
Equations::
Quantity:: q = 2d
Value:::: 10d + 25q = 900 cents
------
Substitute for "q" and solve for "d"::
10d + 25(2d) = 900
10d + 50d = 900
60d = 900
d = 15 (# of dimes)
-----
Solve for "q"::
q = 2d
q = 2*15 = 30 (# of quarters)
-------------
Cheers,
Stan H.
-----------------
RELATED QUESTIONS
John has 24 coins in his pocket-nickels, dimes and quarters-amounting to $3.80. If he... (answered by venugopalramana)
Sean has $9.60 in quarters and dimes. He has twice as many quarters as dimes. How many... (answered by mananth)
Jeff has $1.30 in change. He has twice as many nickels as dimes. He has half as many... (answered by stanbon)
A woman has 10.50 in change consisting of twice as many half dollars as quarters and five (answered by checkley77,kammy13)
John has $9.00 in quarters and dimes. He has 60 coins total. How many quarters does he... (answered by lynnlo)
John has $9.00 in quarters and dimes. He has 60 coins total. How many quarters does he... (answered by lynnlo)
a newspaper carrier has 12.30 in change. He has two more quarters than dimes but three... (answered by ewatrrr)
If John has 4 times as many dimes as quarters and they have a combined value of 325... (answered by ikleyn)
Ron has $1.35 in dimes and quarters in his pocket. If there are twice
as many dimes in... (answered by TimothyLamb)