Answer:
The cost of 10 balls is ![P=\$13.50](https://tex.z-dn.net/?f=P%3D%5C%2413.50)
Step-by-step explanation:
Let
n -----> the number of balls used
P ----> the total price in dollars
we have
![P=0.80n+5.50](https://tex.z-dn.net/?f=P%3D0.80n%2B5.50)
This is a linear equation in slope intercept form
where
the slope is
![m=0.80\ \frac{\$}{ball}](https://tex.z-dn.net/?f=m%3D0.80%5C%20%5Cfrac%7B%5C%24%7D%7Bball%7D)
----> the coordinate y of y-intercept
To find out the cost of 10 balls, substitute the value of n=10 in the linear equation and solve for P
so
For n=10
![P=0.80(10)+5.50](https://tex.z-dn.net/?f=P%3D0.80%2810%29%2B5.50)
![P=\$13.50](https://tex.z-dn.net/?f=P%3D%5C%2413.50)
(3x + 15) + (x + 7) = 94
4x + 22 = 94
4x = 94 - 22
4x = 72
x = 18
You place it inside x + 7
So, 18 + 7 = 25
Angle CBD = 25
Answer:
Look at where 0 is. Then do you see those lines? Start from zero and count up on those lines by 2. I hope that makes sense for you. Also if you know how to would you please mark me brainliest?
Step-by-step explanation:
3-x15 ?? Or 3-x+15 I’m not so sure I’m really bad at this but I really want to try to help I’m sorry if u got it wrong it would be my fault sorry