To find the rate add 1 to the annual rate divided by 365 days raised to the number of days left in the year minus 1.
r= (1 + 0.2319/365)^305 - 1
r = 0.2138
Now multiply by 100 for the percent:
0.2138 x 100 = 21.38%
The factor of 12 is (3*4)
So, you are 4
So, the given information tells us that the ratios between ella's rock music to total cds and paolo's rock music to total cds is the same. This means that we can set them up in a proportion equal to each other. (Let x represent the amount of total cds in paolo's collection)
25/40=59/x
Next, to simplify this equation, we need to use cross-products to cancel out the fraction bars.
25 59
=
40 x
If done correctly, the resulting equation is 20*x=59*40
When simplified, the resulting equation is 20x=2360
Finally, we need to divide both sides by 20, in order to find out what integer represents x in this equation.
x=118
This means that Paolo has a total of 118 cds in his collection.
The question asks how many CDs Paolo and Ella own together. To figure this out, all you need to do is add how many CDs Ella has (40) to how many CDs Paolo has (118).
40+118=158.
Paolo and Ella's combined collection of total CDs is 158 CDS.
Answer:
The solutions to the quadratic equations are:
Step-by-step explanation:
Given the function
substitute y = 0 in the equation to determine the zeros
Switch sides
Add 4 to both sides
Simplify
Rewrite in the form (x+a)² = b
But, in order to rewrite in the form x²+2ax+a²
Solve for 'a'
2ax = -6x
a = -3
so add a² = (-3)² to both sides
Apply perfect square formula: (a-b)² = a²-2ab+b²
solve
Add 3 to both sides
Simplify
now solving
Add 3 to both sides
Simplify
Thus, the solutions to the quadratic equations are:
