Step-by-step explanation:
I don't know if you do this the same way I did, but..
The first step is to subtract 9 on both sides, like this.
13w + 9 = 178
-9 -9
You'll end up with:
13w = 169
I don't know if you need the answer or not but I'll help you out.
For the second step, divide both sides by 13w.
13w = 169
/13w /13w
w = 13
Hope this helped!
Answer:it’s (2,5)
Step-by-step explanation:
Answer:
An egg and cheese biscuit was $3.65.
Step-by-step explanation:
Liam's breakfast was:

Where:
P: total price
E: egg
C: cheese biscuit
M: carton of milk

(1)
Now, Finn's breakfast was:

(2)
By subtracting equation (2) from (1) we have:


Hence, the price of a carton of milk is $2, so by entering this value into equation (1) we can find the price of an egg and cheese biscuit:


Therefore, an egg and cheese biscuit was $3.65.
I hope it helps you!
The product of two perpendicular slopes is always -1