A jeweler has five rings, each weighing 18 grams, made of an alloy of 10% silver and 90% gold. He decides to melt down the rings and add enough silver to reduce the gold content to 45 %. How much silver should he add?

True or False: 1. The product of two natural numbers is always a natural number. 2. The sum of two natural numbers is always a natural number. 3. The ratio of two natural numbers is always positive 4.

4, - 20, 100, - 500 complete the sequence using inductive reasoning

In a triangle, one of the exterior angles measures 155. what is the measure of the non adjacent, right angle

How do I solve this equation 5x-14=8x+4

The transitive property holds for similar figures. the ametive property holds for similar figures true or false

Suppose the circumference of a circle is 24 pi. What is the radius of the circle?

One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds. How are the birds able to coexist?

A store owner buys backpacks at a certain price and sells them at a higher price. The difference is called the markup. If she pays $21 for a backpack and adds a 40% markup on the price she paid, what is the selling price?

Damon gave away 415 pieces of candy for Halloween and collected 84 pieces of candy while trick-or-treating. Which of the following is true? a. Damon had a net loss of 499 pieces of candy. b. Damon had a net gain of 499 pieces of candy. c.

How do u multiply monimials