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?

Show that the equation of the line passes (3,5) and (3,-7). Is it possible to what an equation of the line in slope-intercept form?

What is - 67=d+-18? i dont understand

Phineas will cover a cube with paint that costs $5 per square foot. Each edge of the cube is 8 feet long. What is the least amount of money Phineas will spend on paint?

3/5x - 2 = - 8 Show your work

Which answer is the best explanation for how to set up this problem? 235 + 64.1 = ? A. Put a zero after the 1 in 64.1 and align the 2 in 235 with the 6 in 64.1. B. Align place values so that the 5 in 235 is aligned with the 1 in 64.1. C.

The charts show the effect of an interest rate adjustment on an adjustable-rate mortgage. Before adjustment, the principal is 200,000 dollars, the monthly interest rate is.

Chef Johnson used 4 1/2 cups of flour to make 4 fruit cakes how many cups of flour are needed for 1 fruit cake

A cone has a radius of 5 feet and a height of 18 feet. If the radius of the cone is tripled but the volume remains unchanged, what will be the new height of the cone?

What is 3/4 * 4/9 equal

Bob deposits $5000 into an account that pays simple interest at a rate of 4% per year. How much interest will he be paid in the first 6 years?