Okay, we know the price of the child's ticket (x), which is 5.75 dollars less than the adult's ticket.
Let's say that the price of the adult's ticket is a. Since the child's ticket is 5.75 less that the adult's ticket, we can write it this way:
a = 5.75 + x
That no matter what if you feel good about yourself you do better at what your doing. Hope I helped!
<span>6x^2 + 12x – 7 = 0
Use the quadratic formula:
![x= \frac{-b +/- \sqrt{b^2 -4ac} }{2a}](https://tex.z-dn.net/?f=x%3D%20%20%5Cfrac%7B-b%20%2B%2F-%20%20%5Csqrt%7Bb%5E2%20-4ac%7D%20%7D%7B2a%7D%20)
![\frac{-12+/- \sqrt{ 12^{2} -4(6)(-7)} }{12} = \frac{-12+/-17.66}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-12%2B%2F-%20%5Csqrt%7B%2012%5E%7B2%7D%20-4%286%29%28-7%29%7D%20%7D%7B12%7D%20%3D%20%5Cfrac%7B-12%2B%2F-17.66%7D%7B12%7D%20)
x = 0.47 and x = -2.47
</span>
Answer:
d(t) = -20t -260
Step-by-step explanation:
We are given two points ...
(t, d) = (3, -320) and (8, -420)
The 2-point form of the equation of a line can be useful when 2 points are given.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
Substituting the given points, we have ...
d(t) = (-420 -(-320))/(8 -3)(t -3) -320
d(t) = -20(t -3) -320
d(t) = -20t -260
The answer for 2 is 320 because you have to keep counting by 40's