Answer is C lines A and K
This problem is already a bit more simple since they give you the amount of fabric per sock. Now, to solve, you will want to divide 9 3/4 by 5/6. However, if you don't have a calculator, it's rather inconvenient to solve with a fraction, so convert the fraction to a decimal, which should leave you as 9.75 divided by .83333333. Your final answer should be somewhere around 11.7 socks. Since you can't make 7/10 of a sock, your answer should be around 11 socks.
The first thing we must do for this case is find the number of total guitarists.
We have then:
We now look for the relationship between the number of guitarists playing jazz alone to the total number of guitarists.
We have then:
Where,
x: number of guitarists playing jazz alone
From here, we clear the value of x.
Then, the number of guitarists who play classical solo is:
Answer:
30 guitarists play classical solos in the contest
1$ = 100 cents, 1 hour = 60 minutes
$7.80/hour = (7.8*100) cents / (1*60)minutes
= 780 cents/60 minutes
= 13 cents/minute
<span>Option b.</span>
