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the total amount cost of 10 pillows and 15 pillow cases is £175. A pillow costs £6.50 more than a pillow case.how much does a pillow case cost?

Guest Mar 4, 2015

Best Answer 

 #2
avatar+26758 
+5

Let p be cost of a pillow and c be cost of a case.  Then

 

10p + 15c = 175

p = c + 6.5

 

Replace the p in the first equation using the second equation:

 

10(c + 6.5) + 15c = 175

 

25c + 65 = 175

 

25c = 110

 

c = 4.4

 

So a pillow case costs £4.40

.

Alan  Mar 4, 2015
 #1
avatar
0

i have no idea

Guest Mar 4, 2015
 #2
avatar+26758 
+5
Best Answer

Let p be cost of a pillow and c be cost of a case.  Then

 

10p + 15c = 175

p = c + 6.5

 

Replace the p in the first equation using the second equation:

 

10(c + 6.5) + 15c = 175

 

25c + 65 = 175

 

25c = 110

 

c = 4.4

 

So a pillow case costs £4.40

.

Alan  Mar 4, 2015

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