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A pen and a pencil together cost $1.10. The pen costs a dollar more than the pencil. How much does the pen cost?

off-topic
 Mar 5, 2019
 #1
avatar+364 
+1

The pen costs $1.05 and the pencil costs $0.05

 

Hope this helped ;P

 Mar 5, 2019
edited by EmeraldWonder  Mar 5, 2019
 #2
avatar+65 
+2

If they both cost 1.10 then add 1.00 two the 1.10 to get the answer of 

 

   1.10

+ 1.00

= 2.10  Answer

 Mar 5, 2019
 #3
avatar
+1

These are both wrong :(

 Mar 5, 2019
 #4
avatar+735 
-1

Okay the pen costs a dollar more than the pencil so they would both be five cents the encil is 5 cents.

 Mar 5, 2019
 #6
avatar+735 
-1

The pen costs $1.05 if its one buck more than the pen because 0.05 plus 0.05 is 0.10 plus a dollar that equals $1.10

HiylinLink  Mar 5, 2019
 #5
avatar
+1

what about the pen?

 Mar 5, 2019
 #7
avatar+735 
-1

The pen costs $1.05 if its one buck more than the pen because 0.05 plus 0.05 is 0.10 plus a dollar that equals $1.10  

; )

HiylinLink  Mar 5, 2019
edited by HiylinLink  Mar 5, 2019
 #8
avatar+188 
+2

This can be awnsered in several ways.

 Mar 5, 2019
 #9
avatar
+2

You should solve it algebraically as follows:

 

Let the cost of the pencil = P, then:

The cost of the pen          =P + 1. So, we have:

P + P + 1 =$1.10

2P + 1      =$1.10               Subtract 1 from both sides

2P            =$0.10                Divide both sides by 2

P              =$0.10 / 2

P  = $0.05 cents - the cost of the pencil

$1 + $0.05 =$1.05 - cost of the pen.

 Mar 5, 2019
edited by Guest  Mar 5, 2019
 #10
avatar+735 
-1

yes you can but you still can do it this questions dosen't require much though LOL but yes it is good to keep habit.

HiylinLink  Mar 5, 2019
 #11
avatar+364 
+2

True does not require that much but at least she proves her math and gives a detailed expination of her math. Its detailed so it could help someone through the process if wanting to solve this problem. 

EmeraldWonder  Mar 5, 2019
 #12
avatar+188 
0

Well it kind of does depend on where in math your looking at too.

lacichubean  Mar 6, 2019

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