Question

A seamstress uses 12 yards of fabric to make 3 costumes for students in the chorus. How many yards will she need to make costumes for all 25 students in chorus?

Answer 1

Answer:

100 yards

Step-by-step explanation:

It takes 4 yards of fabric to make a costume for one student.  She needs to make costumes for every student in chorus, so you just multiply this number by 25 and get 100 yards.

Answer 2

Answer:

100 yards.

Step-by-step explanation:

We have been given that a seamstress uses 12 yards of fabric to make 3 costumes for students in the chorus.

We will use proportions to solve the given problem.

$\frac{\text{Yards of fabric}}{\text{Costumes}}=\frac{12}{3}$

$\frac{\text{Yards of fabric}}{25}=\frac{12}{3}$

$\frac{\text{Yards of fabric}}{25}*25=\frac{12}{3}*25$

$\text{Yards of fabric}=4*25$

$\text{Yards of fabric}=100$

Therefore, 100 yards of fabric is needed to make costumes for 25 students.