Answer:
The price of the kilogram of cookies is $ 1.8
Step-by-step explanation:
Call x the price of the kilogram of candy and call y the price of kilogram of cookies
Then we know that
We also know that the price of kilogram of cookies is 1.40 dollars cheaper than the kilogram of candy
So
We solve this equation for x and then we substitute it in the first equation.
Yes it is a function because there are no repeating x or y values
Answer: y=(x-1)/2
Step-by-step explanation:
To find the inverse, you want to switch the y with x and x with y. Then, you solve.
y=2x+1 [switch y with x and x with y]
x=2y+1 [subtract both sides by 1]
x-1=2y [divide both sides by 2]
(x-1)/2=y
Now, we know that y=(x-1)/2 is the inverse.
Answer:
x=60
Step-by-step explanation:
180-60=120 and then since there are 2 x you divide it by 2 which equals 60
