Answer:
what is the expression? please provide an expression.
Unit rate would be 50 because 250÷5=50, so the answer would be (250×3)+50, witch is 800.
We must take into account the following change of units:
Applying the change of units we have that the electric consumption for 1 year is given by:
Then, the total cost is given by:
Answer:
the cost of operating a 3.00-w electric clock for a year is:
$ 2.3652
we are given
we can multiply -1 on both sides of second equation
we can see that
both equations becomes same
so, they are coincident............Answer