domain all R and range [3,infinity)
Step-by-step explanation:
domain is all the values of x, i.e x=2
range is the outcome of the equation, i.e 2*2 + 3 = 7
Answer:
20 days?
Step-by-step explanation:
3 times a day is 15 and 300 ÷ 15 = 20
Answer:
well it's that there is no way to simplify
Step-by-step explanation:
Answer:
It will take nine years and four months for the refrigerator to pay for itself.
Step-by-step explanation:
The new refrigerator which costs $1200, saves the family 22% annually in energy cost.
Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.
22% of $580
= 580 × 0.22
= 127.6
That is, it saved then $127.6 per year.
Now,
$1200/127.6
≈ 9.4
Which means, it will take 9 years and 4 months for the refrigerator to pay for itself.