Answer: 40
Step-by-step explanation:
Since 40 could be = 1 x 40, 2 x 20, 4 x 10, or 5 x 8.
The Factors of 40 will therefore be: 1, 2, 4, 5, 8, 10, 20, 40.
The Prime factor then is: 2, 2, 2, 5
Multiplying them together gives 40.
Nine tenths of a dollar is ninety cents
So this translates to:
5e + 5n = 25.95
2e + 6n = 22.38
One way to solve that is to multiply the top equation by 2, and the bottom equation by 5:
10e + 10n = 51.90
10e + 30n = 111.90
Then subtract the top from the bottom to get:
20n = 60
and divide by 20 to get
n = 3
So you know that note paper costs $3. Substituting that into the top equation you get:
5e + 5*3 = 25.95 or
5e + 15 = 25.95
Subtracting 15 from both sides you get:
5e = 10.95
Dividing by 5 you get:
e = $2.19
We use the log rule logₐ b = x ⇒ aˣ = b
Given (3)³ = 27
Following the rule, we can write (3)³ = 27 as
log₃ 27 = 3
Correct Answer: C
Simple....
you have
To solve...you must complete the square...
use
to create a new term...
x=1(+/-)
Thus, your answer.
(Or, x≈3.23606797, -1.236067967)
