19,500 in 5 years duh srry it’s just 19,500
To find the cost of each book, you need to divide the money spent on all of the books by the number of books.
$39 / 10 = $3.90 per book
(3y+40)+(3x-70)=180
3y+3x-30=180
3y+3x=210
3(y+x)=210
y+x=70
x=70-y
meanwhile 180-120=x therefore x=60
therefore
60=70-y y=10
so x=60 y=10
Answer:
Hi, there your answer is no it is not a function
Step-by-step explanation:
Since x is repeating itself
Answer:
True
Step-by-step explanation:
That expression is called the "Quadratic formula" and basically the solution to any second degree equation can be find by using the quadratic formula.
Attached you can find the procedure to get to the quadratic formula from the general equation of a second degree polynomial.