N=135-4(14). The number of coins remaining would be the initial amount (135) minus the amount used on the game. You could simply find the product of 4 and 14 since the game costs 4 coins per game and they each played 7 times. After that step is done...the equation could be further broken down to N=135-56. Getting the answer of N= 79 coins remaining. Another equation could be N=135-4x. The x in this case would represent how many times the game was played. Then, you could put the 14 in because they each played 7 times. I hope this helps. Next time, include the answer that were given. I was unsure about the “select all that apply” as the there were no choices given.
Answer:
dy/dx = -5y - y/x
Step-by-step explanation:
In xy + 5x = 30
Differentiating xy implicitly
y + xdy/dx
Assuming u = xy
In xy = In u
Differentiating In u = 1/u = 1/xy
Differentiating 5x = 5 and differentiating a constant (30) = 0
1/xy(y + xdy/dx) + 5 = 0
(y + xdy/dx)/xy = -5
(y + xdy/dx) = -5xy
xdy/dx = -5xy - y
dy/dx = = (-5xy - y)/x
dy/dx = -5y - y/x
Answer:
4/5
Step-by-step explanation:
Because Patrick ate 1/5 of his cake, meaning that there would be 4/5 of the cake left for his friends to eat.
yes
I beleive the answer is B
Answer:
see explanation
Step-by-step explanation:
(a)
Given
x² + 5x + 6
Consider the factors of the constant term ( + 6) which sum to give the coefficient of the x- term ( + 5)
The factors are 3 and 2, since
3 × 2 = 6 and 3 + 2 = 5, hence
x² + 5x + 6 = (x + 3)(x + 2) ← in factored form
(b)
To solve
x² + 5x + 6 = 0 ← use the factored form, that is
(x + 3)(x + 2) = 0
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3
x + 2 = 0 ⇒ x = - 2
