The equation is
Step-by-step explanation:
The bracket is denoted by the variable x.
The necklace is denoted by the variable y.
From given, Linda sells her bracket for $6.
Thus, the expression for bracket is .
Also, Linda sells her necklace for $10.
Thus, the expression for necklace is .
The equation for Linda sells her bracket and necklace is
Given:
s is inversely proportional to t.
When s = 0.5, t = 7.
To find:
The value of s when t=0.8.
Solution:
s is inversely proportional to t.
...(i)
Where, k is the constant of proportionality.
Putting s=0.5 and t=7, we get
Putting k=3.5 in (i), we get
This is the equation of proportionality.
Putting t=0.8, we get
Therefore, the value of s is 4.375 when t=0.8.