Solve the word problem

Question

jeweler has 7 rings, each weighing 11 g, made of an alloy of 15 percent silver and 85 percent gold. He decides to melt down the rings and add enough silver to reduce the gold content to 70 percent. How much silver should he add? 

  a) Write an equation for the total amount of gold in the mixture. Use sss to represent the amount of silver added. 

Now solve the equation for s.

 

Answer 1

Step 1:

A jeweler has rings, each weight is .

Total rings weight is .

Its made of an alloy of silver and gold.

He decides to melt down the rings and add enough silver to reduce the gold content to .

Let, represent silver.

The equation is .

Find the how much silver should be added.

Solve the equation.

Solution:

silver should be added to reduce the gold content to .