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21 Jul 2020, 03:28
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
75% (01:43) correct
25%
(02:32)
wrong
based on 79
sessions
History
Date
Time
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Not Attempted Yet
Lisa has 160 coins that are worth $31.00. If the coins are all quarters (25 cents) and dimes (10 cents), how many fewer dimes than quarters does Lisa have?
A. 15
B. 25
C. 40
D. 60
E. 100
A. 15
B. 25
C. 40
D. 60
E. 100
21 Jul 2020, 03:45
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Let there be Q quarters and D dimes
Q+D = 160
25Q + 10D = 310
Solving this, we get
Q = 100 and D = 60
So, we have 40 MORE quarters than dimes
Option C
Bunuel I believe that there is a typo.
Quarter is 25 cents and not 24
Posted from my mobile device
Q+D = 160
25Q + 10D = 310
Solving this, we get
Q = 100 and D = 60
So, we have 40 MORE quarters than dimes
Option C
Bunuel I believe that there is a typo.
Quarter is 25 cents and not 24
Posted from my mobile device
