Question

Tina would like to melt down her existing gold jewelry to make a 20 ounce gold necklace that is 90% pure gold. After melting her jewelry, she is left with two batches. One batch is 75% pure. The other batch is 96% pure. How much of the 96% pure melted gold should Tina mix with the 75% pure melted gold to obtain 20 ounces of 90% pure gold?

Answer 1

@TuringTest

Answer 2

@aaronq

Answer 3

@DW101796

Answer 4

When you use 5.71 ounces of 96% gold, there's 14.29 ounces of 75% gold needed to make 20 ounces

Answer 5

A.
5.71 ounces
B.
7.00 ounces
C.
14.29 ounces
D.
13.00 ounces

Answer 6

im not sure how you transfer that into these answers?

Answer 7

C.

Answer 8

thank youuuu again(:

Answer 9

Welcome(: