Question

If a pen and a pencil cost 1.10$ but the pen cost is 1$ more than pencil​

Answer 1

The pencil cost $0.05 and the pen cost $1.05.

Explanation:

Let, the price of the pencil is $ .

Given that the pen costs a dollar more than the pencil,

So, the price of the pen=$+1.

Therefore, ++1=1.10

, 2+1=1.10

, 2=1.10–1

, 2=0.10

, =0.10/2

, =0.05

The pencil cost $0.05 and the pen cost $1.05.