Answer:
Equation is: 
Length in yards is 16 yards.
Step-by-step explanation:
Let 'L' represent length in feet and 'y' in yards.
Given:
Length of the waterslide is, 
Length in feet is three time its length in yards. Therefore,
Length in feet = 3
Length in yards.
∴ 
Dividing both sides by 3, we get:

Now, plug in 48 for 'L' and solve for 'y'. This gives,

Therefore, the length of the waterslide of length 48 feet in yards is 16 yards.
It decreases
The further two objects are, the gravitational attraction decreases and the closer two objects are, the gravitational attraction increases
Hi,
To find a price of a single unit, you need to divide total with the amount of units 5.

Single unit price (rate) is 4$.
Hope this helps.
If you have any questions about answer leave a comment below.
r3t40
Answer:
x - y = 25
Step-by-step explanation:
3x - 4y = 15
-2x + 3y = 10
Add the two equations together
3x - 4y = 15
-2x + 3y = 10
----------------------
x - y = 25