6 is 4.9 and 6.2 but i’m not sure about 7 tho
Answer:
False
Step-by-step explanation:
a millisecond (ms or msec) is one thousandth of a second
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.
I don't know what using disk means, sorry but I know that,...
7÷2=3.5
HOPE THIS HELPED :)
