3d-10+d=120 32.5(3)-10
3d+d-10=120 97.5-10
4d-10=120 87.5
+10 +10
------------------- Martha's rope is 87.5" long
4d=130
---- ----
4 4
d=32.5
Answer:
Step-by-step explanation:
Thirteen less than the quotient of forty and a number. Required equation:
<u>When n = 2 we have:</u>
The instruction to "use a common denominator to divide" may be counter-intuitive to someone taught to "invert and multiply."
To find the number of glasses, we divide the amount of juice by the glass size. The divisor is the glass size, and we want to have a common divisor with the juice quantity.
We can remove a factor of 2 from the numerator and denominator of the juice quantity to give it a denominator of 4, in common with the glass size.
number of glasses = (quantity of juice) / (glass size)
number of glasses = (6/4 cups)/(3/4 cups)
Factoring (1/4 cups) from numerator and denominator, we have
number of glasses = 6/3
number of glasses = 2
Answer:
x^2-4x+3
Step-by-step explanation:
Since the zeroes of the quadratic are 1 and 3, we can set up an equation in factored form:
(x-1)(x-3)
=x^2-4x+3
We can further check that this is the right answer by evaluating it at the vertex:
(2)^2-4*2+3=-1
Since that corresponds to the graph, the answer is x^2-4x+3
I think it's A. I can't really see the graphs clearly. It's the one that crosses at (15,2)
