Answer:
<u>x= -7 , y= 9</u>
Steps:
4x+3y=-1
5x+4y=1
First, multiply the top equations by -5, and the bottom by 4 to get :
-20x-15y=5
20x+16y=4
Then, you’re going to add the two equations with them being on top of each other so you can easily see what cancels out :
-20x-15y=5
+ 20x+16y=4
———————
0+1y=9
From this, you get :
y=9
Now that you have one variable, find x by substituting 9 for y in one of the equations, I choose :
4x+3y=-1
So :
4x+3(9)=-1
Then simplify by multiplying 3 and 9 :
4x+27=-1
Then subtract 27 on each side :
4x=-28
Then, divide by 4 to get that :
x= -7
Hope this helps!!
Answer:
$154,763.5
Step-by-step explanation:
A = P(1 + r/n)^nt
Where,
A = future value
P = present value
r = interest rate
n = number of periods
t = time (years)
P = 97,000
r = 6% = 0.06
n = 365
t = 8 years
A = P(1 + r/n)^nt
= 97,000(1 + 0.06/365)^365*8
= 97,000(1 + 0.00016)^2,920
= 97,000(1.00016)^2,920
= 97,000(1.5955)
= 154,763.5
A = $154,763.5
Answer:
the coefficients are 4 and 5 and 1
Step-by-step explanation:
the 4 and 5 have a variable in front of them. There's a ghost 1 in front of the x, because it's value is 1 times whatever the value of x is