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

Answer 1

@iGreen @CO_oLBoY

Answer 2

@dan815

Answer 3

@iambatman @mathmale @mathmate

Answer 4

@undeadknight26

Answer 5

@ParthKohli

Answer 6

someone pleasse help me

Answer 7

@Nurali

Answer 8

I am about to eat lunch...
See if this helps :D
http://openstudy.com/study#/updates/5212c8b2e4b00ebc7dbfab94

Answer 9

its
C.14.29 ounces

Answer 10

This is a continuation of the other problem, the answer should be 5/7 of 20 oz

Answer 11

i did that and it was wrong the answer is c

Answer 12

if u multiply (5/7) into 20 u'll get 14.29 ounce