In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. What is the cost of each shirt?
a.$3.00
b.$12.00
c.$15.00

c: $15

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Asked 7/27/2011 1:21:05 PM

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A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank?
A.12 quarters
B.17 quarters
C.21 quarters **Weegy:** B.17 quarters (More)

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Asked 7/26/2011 2:13:10 PM

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In a certain candy store, 3 pounds of candy and 2 pounds of mints cost $10.80, and 1 pound of candy and 3 pounds of mints cost $5.35. What is the cost per pound of the mints? a.mints are 65¢ per lb b.mints are 75¢ per lb c.mints are 85¢ per lb **Weegy:** c **User:** In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. What is the cost of each shirt?
a.$3.00
b.$12.00
c.$15.00 (More)

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Expert Answered

Updated 8/20/2014 7:52:18 AM

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In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. the cost of each shirt is 15.

Assuming that cost of shirt is x, cost of tie is y.

3x+5y=60, 2x+3y=39.

x=(39-3y)/2

3(30-3y)/72+5y=60,

y=120-117=3.

x=(39-3x3)/2

=30/2

=15.

Assuming that cost of shirt is x, cost of tie is y.

3x+5y=60, 2x+3y=39.

x=(39-3y)/2

3(30-3y)/72+5y=60,

y=120-117=3.

x=(39-3x3)/2

=30/2

=15.

Added 8/20/2014 7:52:18 AM

two adults and three children go to the movies, it costs $31.50. If one adult and five children go to the movies, it costs $35.00. What is the cost of one adult movie ticket? a.$5.50 b.$6.50 c.$7.50
**Weegy:** c.$7.50 **User:** A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank?
a.12 quarters
b.17 quarters
c.21 quarters (More)

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Updated 8/20/2014 7:55:50 AM

1 Answer/Comment

A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, 17 quarters are in the bank.

Assuming that number of dime is a , quarters is b,

a+b=29

0.1a+0.25b=5.45

a=29-b

0.1(29-b)+0.25b=5.45

b=17

a=29-17=12.

dimes are 12 , quarters are 17

Assuming that number of dime is a , quarters is b,

a+b=29

0.1a+0.25b=5.45

a=29-b

0.1(29-b)+0.25b=5.45

b=17

a=29-17=12.

dimes are 12 , quarters are 17

Added 8/20/2014 7:55:50 AM

A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank? a.12 quarters b.17 quarters c.21 quarters
**Weegy:** B.17 quarters **User:** A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.
Which of the following expressions is equal to 4(50)?
a.0.2x + 0.7y
b.2x + 7y
c.x + y **Weegy:** b.17 quarters (More)

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Updated 8/20/2014 7:46:40 AM

1 Answer/Comment

The expression of 0.2x + 0.7y is equal to A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.

Assuming that 20% acid is , 70% acid is y,

20%*x+70%*y=50*40%

0.2x+0.7y=20.

Assuming that 20% acid is , 70% acid is y,

20%*x+70%*y=50*40%

0.2x+0.7y=20.

Added 8/20/2014 7:46:40 AM

A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution. Which of the following expressions is equal to 4(50)? a.0.2x + 0.7y b.2x + 7y c.x + y **Weegy:** a.0.2x + 0.7y (More)

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Asked 7/27/2011 1:46:27 PM

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