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Ilia_Sergeevich [38]
3 years ago
14

A man has 12 coins in his pocket, all of which are dimes and quarters. If the total value of his change is $2.70, how many dimes

and how many quarters does he have?​
Mathematics
2 answers:
enot [183]3 years ago
4 0
He has 10 quarters and 2 dimes.
Artist 52 [7]3 years ago
3 0
8 quarters and 7 dimes
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Step-by-step explanation:

 

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100 point reward with certified answer. 4 basic algebra questions, must show work. If the answers are wrong your response will b
ipn [44]
Y=kx
12=-4k
  k = -3

so when y = 15
y = kx
15 = -3x
  x = -5

----------------

$50 / 0.04 = $1250 (4% interest)

so
1250 * 0.06 = $75

answer
interest $75 at 6%

-----------------------------

y = kx
1/4 = 4k
k = 1/16

when x = 5
y = kx
y = 1/16(5)
y = 5/16 

-----------
y = kx
-5 = 4k
k = -5/4

direct equation
y = -5/4x

6 0
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