378 ft I think this is the answer
Answer:
The correct option is option B. It has one solution, and it's x=-3
Step-by-step explanation:
We have the following system of equations:
5x+7 = 2y (1)
y-9x=23 (2)
Step 1: Solve for 'y' in equation (2):
y-9x = 23
y = 9x + 23
Step 2: Substitute in equation (1):
5x + 7 = 2y
5x + 7 = 2(9x + 23)
5x + 7 = 18x + 46
Step 3: Solve for x:
7 - 46 = 18x - 5x
-39 = 13x
x= -3
So the correct option is option B. It has one solution, and it's x=-3
Answer:
The new price is 41.60
Step-by-step explanation:
First find the discount
52 * 20%
52 * .2
10.4
Subtract this from 52
52 - 10.4
41.6
The new price is 41.60
Answer:
This could easily be answered with a culculator but the answer is 20.
Step-by-step explanation:
5x4=20