This one is easy. All you have to do is divide 84/7. and then you will have the amount of 12 so each of Danny's friends contributes $12.
Step-by-step explanation:
c = cost per person
p = number of people
The cost per person is 1500/p, where
is the number of people. A larger p creates a smaller value of c since they are INVERSELY RELATED.
I believe the inverse variation function is
c = 1500 × 1/p
make sure to ask if you need anything else. :)
He would have to pay them 1000 cause after he gets his car fix he will have 2000 left
Answer:
discriminant=0
Number of real solutions=1
Step-by-step explanation:
Given the equation:
-9x^2-6x-1=0
Let a: coefficient of x^2
Let b: coefficient of x
Let c: constant
a=-9
b=-6
c=-1
The formula of the discriminant is given by:
discriminant= b^2 - 4ac
discriminant= (-6)^2 - 4(-9)(-1)
= 36 - 36 = 0
We know that:
If discriminant<0 then the equation has no real root
If discriminant=0 the equation has one real root
If discriminant>0 the equation has 2 real roots
Here we got discriminant=0 so the quadratic equation has 1 real root.
Divide 32 by 6 to get a repeating decimal of 5.333333333......... .333 repeating is the same thing as the fraction 1/3. So each headband takes 5 1/3 inches of fabric.
