A pen and its ink refill together cost $\;\$1.10$. The pen costs $\;\$1$ more than the ink refill. What is the cost of the pen in dollars?

$1.05

Step-by-step explanation:

Let the cost of ink refill be $x

given

The pen costs 1$ more than the ink refill

Then, cost of pen in terms of x is $( x + 1)

Total cost of pen and refill in terms of x = x + x+ 1 = 2x + 1

It is also given

A pen and its ink refill together cost $\;\$1.10$

Thus,

2x + 1 = 1.10

=> 2x = 1.10 - 1 = 0.1

=> x = 0.1/2 = 0.05

Thus, cost of refill = $0.05

cost of pen = 1+ x = 1 + 0.05 = 1.05

Thus, cost of pen in $ is 1.05.

the nearest power is 1.651.

means 7482 to the 1.651th power is almost equal to 2489287

y/x=18

step-by-step explanation: