The correct option is a. 550 dm.
The 0.55 hectometers expressed in decimeters are 550 dm.
<h3>What is unit conversion?</h3>
Unit conversion is a multi-step process that involves multiplying or dividing by a numerical factor and, more specifically, a conversion factor.
- The process may also necessitate selecting the appropriate amount of significant digits and rounding.
- Different conversion units are employed to measure various parameters.
- Measuring Temperature
- Measuring Length
- Measuring Capacity
- Measuring Weight
- Conversion of units is defined as the process of converting between different units & measurements of a given quantity using multiplication or division.
- Conversion is the method of changing the amount of one form in terms of mathematics, such as inches to millimeters or liters to gallons.
- Units are used in the measurement of length, weight, capacity, temperature, and speed.
To know more about unit conversion, here
brainly.com/question/13016491
#SPJ4
The amount after 3 years would be $221.74
<u>Explanation:</u>
Given:
Principal, P = $200
Rate of interest, r = 3.5%
Time, t = 3 years
Amount, A = ?
We know:
Substituting the value we get:
Therefore, the amount after 3 years would be $221.74
Answer:
Step-by-step explanation:
a) Let's 
the length of the side of the small square.
Thus,
b) Now, the area of the small square is
Answer:
The number 30 is composite
Step-by-step explanation:
It is a composite because multiple numbers can go into 30 like 6 and 5 or 3 and 10. A prime number is like 3 because only 3 and 1 can go into it. 2 and 5 and 7 is also a prime number.
The numbers are: 36 and 11 .
______________________________________________
Explanation:
______________________________________________
Let us represent the TWO (2) numbers with the variables;
"x" and "y" .
__________________________________________
x + y = 47 .
y − x = 25.
__________________________________________
Since: " y − x = 25 " ;
Solve for "y" in terms of "x" ;
y − x = 25 ;
Add "x" to each side of the equation:
_____________________________________________
y − x + x = 25 + x ;
to get:
y = 25 + x .
Now, since:
x + y = 47 ;
Plug in "(25 + x)" as a substitution for "y"; to solve for "x" :
x + (25 + x) = 47 ;
x + 25 + x + 47 ;
2x + 25 = 47 ;
Subtract "25" from each side of the equation:
2x + 25 − 25 = 47 − 25 ;
2x = 22 ;
Divide EACH SIDE of the equation by "2" ;
to isolate "x" on one side of the equation; and to solve for "x" ;
2x / 2 = 22 / 2 ;
x = 11 ;
______________________________________________
x + y = 47<span> ;
</span>Plug in "11" for "x" into the equation ; to solve for "y" ;
11 + y = 47 ;
Subtract "11" from EACH SIDE of the equation;
to isolate "y" on one side of the equation; and to solve for "y" ;
11 + y − 11 = 47 − 11 ;
y = 36 .
___________________________________________
So: x = 11 , y = 36 ;
___________________________________________
Let us check our work:
y − x = 25 ;
36 − 11 =? 25 ? Yes!
x + y = 47 ;
36 + 11 =? 47 ? Yes!
______________________________________________
The numbers are: 36 and 11 .
______________________________________________
