A.step 1 because it should be x^2 not 2x
Answer:
x = -25
x = infinite solutions
Step-by-step explanation for 1:
4(-25) - 10 = 5(-25) + 15
-100 - 10 = -125 + 15
-110 = -110
Step-by-step explanation for 2:
Both equations are the exact same. So whatever number you put, the answer will be right
<span>Katie has a loan balance of ----------------$5,000
</span>interest-------------------------------------------<span>$675
years----------------------------------------------3
if
</span>$5,000---------------------100%
$675-------------------------X% X=675*100/5000
X=13.5% total interest 3 years
one year----------13.5/3=4.5% per year
Chris has a loan balance of ----------------$2,500
interest-------------------------------------------$625
years----------------------------------------------5
if
$2,500---------------------100%
$625-------------------------X% X=625*100/2500
X=25% total interest 5 years
one year----------25/5= 5% per year
a) Chris is paying the highest interest rate ----------5% per year
b) The difference is (5%-4.5%)= 0.5%
First put the first equation in Y= which is:
Y=2x-11
So we can substitute this in for Y.
X+3(2x-11)=-5
Now solve for X
X+6x-33=-5
7X=28
X=4
I would use the quadratic equation for this.
