A jeweler has 10 ounces of an alloy that is 50% gold. How much more pure gold does the jeweler need to add to this alloy, to increase the percentage of gold to 60%?

Which is the best example of evidence? First of all, if someone says your dream is impossible, they're wrong. You can't prove that something is impossible-all you know is that [it] hasn't been done yet.

Find sum or difference. -1/2 + 1/3

The the nearest hundredth, what is the area of a circle with a radius of 7 units

Find the interquartile rang for the data set:10,3,8,6,9,12,13

4x-3y+6z=18,-x+5y+4z=48,6x-2y+5z=0 what are x, y, and z?

Is 5000 lb greater than 5 ton

Calculate the total surface area of this hemisphere radius 9 give your answer in 1 decimal place

What ia the common ratio of the sequence? - 2, 6, - 18, 54, ...

What is g+114.78=152.98 A g=267.76 B g=28.2 C g=38.2

Which is another way to check the sum of 104 + 34 + 228 + 877? A. 877 - 104 + 34 + 228 B. 877 - 228 - 34 - 104 C. 34 - 104 + 228 + 877 D. 877 + 228 + 34 + 104