Question
A short necklace has 32 gold beads and 8 black beads. A long necklace has a total of 60 beads. Both necklaces have the same ratio of gold beads to black beads. How many black beads are on the long necklace?
Asked by: USER6963
208 Viewed
208 Answers
Responsive Ad After Question
Answer (208)
Let x = number of black beads
8/40 = x/60
cross multiply and solve for x
40x=480, x = 12
to check: 12 black beads --> 60 - 12 = 48 gold
48/12 = 4
for the short necklace, 32gold/8 black = 4
Therefore, it works out
8/40 = x/60
cross multiply and solve for x
40x=480, x = 12
to check: 12 black beads --> 60 - 12 = 48 gold
48/12 = 4
for the short necklace, 32gold/8 black = 4
Therefore, it works out