Jackson middle school has 3 students in choir for every 1 student in band. If there are 42 students in band, how many students are in choir?

126 students in choir

Step-by-step explanation:

We have the ratio  3 : 1  for   choir : band

x choir :  42 band  =  3: 1

x = 3 * 42 = 126 students in choir

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

step-by-step explanation:

20-2= what