Question

A record label surveyed 150 random visitors to its website to discover whether they prefer metal, rock, hip-hop, or jazz. The survey showed that 27 visitors preferred metal, 78 preferred rock, 21 voted for hip-hop, and 24 liked jazz. If the company estimates sales of 6,000 copies a week at its online store, how many will likely be from the rock genre?
A.
1,040
B.
3,000
C.
3,120
D.
4,200

Answer 1

so, heres a ratio just to make it sorta make since,
27:78:21:24 or you could say 27+78+21+24=150

now, take the rock amount, 78, and find the percentage of it to 150
\(78~is~what~percent~of~150\)

then take the percentage and multiply it by 6000 and you should have your answer
\(6000 \times p\)