A jeweler has 5 rings, each weighing 18 g, made of an alloy of 15% silver and 85% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 75%. How much silver should she add?

Mixed numbers from 6 to 7 with interval of 1/5

there are 18 animals in a pet store some are birds and others are dogs. there are 50 legs in total. how many dogs are there

Can someone tell me how to figure this out step by step using the distributive property? 6 (1/2 + 2/3 + 3/4)

Determine whether each integral is convergent or divergent. 1 - 1 / (x-2) ^3/2 dx, limits (infinite to 3) 2 - (1/3-4x) dx, limits (0 to - infinite) 3 - e^ (-5p) dx, limits (infinite to 2) 4 - (x^2 / (sqrt (1+x^3))) dx, limits (infinite to 0) 5 -

Is 10/21 less than or greater than 4/9

What's the vertex for y=2x^2-12x+19

What is the decimal of 1/2 percent

The equation above can be used to calculate the volume V, of a pyramid with a height h and base with length l and width w. If the volume of a pyramid is 81inches^3, and l=w=3h, what is the length of the base of the pyramid in inches?

What is the relationship between the decimals 0.09 and 0.9

A group of winning ticket holders share equally 90,000,000 lottery. Before the money is divided, three more winning ticket holders are declared. As a result, each persons share is reduced to 5,000,000.