Answer:
0.220 L
Step-by-step explanation:
One liter is 1000 mL, so 2,220 mL is 2.220 L. Subtracting the 2 L on hand gives the additional amount required:
2.220 L - 2 L = 0.220 L
_____
The nice thing about metric units is that conversion factors are often powers of 10, so only movement of the decimal point is required. It can be worthwhile to become familiar with the SI prefixes.
Answer:
Step-by-step explanation:
we know that
Susan collected 5 cents at the recycling plant for each of her 78 cans
To find out the total collected , multiply 5 cents by the total number of cans
so
2.7 + 1.7i
We require the fractions to have a common denominator.
multiply the numerator of the first fraction by (3 - i) and the numerator of the second fraction by (3 + 1)
=
=
[ note that i² = ( = - 1]
= = 2.7 + 1.7i ← in standard form