![subject](/tpl/images/cats/mat.png)
Mathematics, 23.09.2021 07:50 Brightcord9679
Gil buys 4 books for $16. Then he sells 3 CDs for $27. Write equations for y, Gil's change
in money after buying a book, and for x, his change in money after selling a CD, in
standard form. What is the slope of each equation?
A. 4y=-16; Slope = 0
3x= 27; Slope = undefined
B. -4y=16; Slope = undefined
-3x= 27; Slope = 0
C. 16y= 4; Slope = -1/4
27x= 3; Slope = 1/9
D. 16y=-4; Slope: -4
27x= 3; Slope: 9
Can anyone explain how they got the equations step by step? THANKS!!
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:10
If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:30
What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21
Answers: 2
You know the right answer?
Gil buys 4 books for $16. Then he sells 3 CDs for $27. Write equations for y, Gil's change
in mone...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 21.04.2020 01:48
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2020 01:48