Answer:
432
Step-by-step explanation:
Hey there!!
The question states that a sum is invested which is $3000 and hence, this would be counted as the principle amount or the principle sum.
The term given is 3 years, which gives us the idea that this interest is being counted or being active for 3 years.
She ( Diana ) earned the sum $450 at the end of three years. This means, the simple interest is $450.
Never get confused with the principle amount, principle sum and interest.
<u><em>Principle amount = Principle sum + The interest. </em></u>
Formula given :
I = prt
'p' is denoted as the principle sum, r is the rate and the t is the term or the number of years.
Now, plugging in all the values :
... <em>450 = 3000×r×3 </em>
... <em>450 = 9000×r </em>
... <em>r = 450 / 9000</em>
... <em>r = 0.05 </em>
... <em>r = 5% </em>
As we need the answer in the decimal form, the answer would be <em><u>0.05</u></em>
Hope my answer helps!!<em> </em>
Answer:
around 3
Step-by-step explanation:
A solution to an equation is a number that can be plugged in for the variable to make a true number statement. Example 1: Substituting 2 for x in. 3x+5=11. gives.
Answer:
x=6
Step-by-step explanation:
Answer:
Integers, whole numbers and polynomials are sets of closed under multiplication.
Only Irrational numbers are not the sets of closed under multiplication.
Step-by-step explanation:
To find : Which of the following sets are closed under multiplication?
1. Integers
Yes, integers is a sets of closed under multiplication as if you multiply an integer by an integer, you will always get another integer.
Example - 
is an integer
2. Irrational numbers
No, irrationals are not closed under multiplication.
Example - 
is a rational number
3. Whole numbers
Yes, whole numbers is a sets of closed under multiplication as if you multiply a whole number by a whole number, you will always get another whole number.
Example - 
is a whole number
4. Polynomials
Yes, polynomial is sets of closed under multiplication as if you multiply the variables' exponents are added, and the exponents in polynomials are whole numbers so the new exponents will be whole numbers.
Example - 
is a polynomial.
