First, you want to solve for the equation for this problem, would be:
0.05N + 0.10D = 20.50
While N = The amount of nickels, and D = The amount of dimes.
Since N = 164, and D = 123. It would add up to 287 coins. 164 + 123 = 287.
Now that you have the number for those two variables, solve the equation for when N = 164, and D = 123.
0.05N + 0.10D = 20.50
<span>0.05(164) + 0.10(123) = 20.50
</span><span>8.2 + 12.3 = 20.50
</span>20.50 = 20.50
So, there is 164 nickels, and 123 dimes for your answer.
<em>I hope this helps! </em>
<em>~ Notorious Sovereign</em>
N³ - 2n² - 15n = 0
"n"
n (n² + 2n - 15) = 0
n = 0
n² + 2n - 15 = 0
Δ = (2)² - 4(1)(-15)
Δ = 4 + 60 = 64
n' = (-2+8) / 2 = 6/2 =3
n'' = (-2-8) / 2 = -10/2 = -5
Solution:
S {-5 , 0 , 3 }
Answer:
1 and 3
Step-by-step explanation:
because 5 and 3 have the same value and since 5 and 1 add up to 90 degrees, 3 and 1 must also add up to 90 degree
Answer:
The completely factorized form is: (x - 1)(x + 2 )(x - 3)
Step-by-step explanation:
To find the solution, we use Ruffini's rule:
1 - 2 -5 + 6
We first divide by (x-1): 1 1 -1 -6
________________________
1 -1 -6 0
Then divide by (x + 2): - 2 -2 +6
_______________________
1 -3 0
Then, the rest of the division is: x - 3
Thus, the completely factorized form is: (x - 1) (x + 2 ) ( x - 3)
Let's solve together :)
Solving for a.
First, add 56 to both sides to get this:
8ab+2a=−56b+6
Factor out variable "a".
a(8b+2)=−56b+6
Divide both sides by 8b+2.
a = -28b+3 / 4b+1
Have a great day. :)
