Well i atleast know its not 10 lol
Every 5 red cars there are 3 blue cars
so if there are 40 red cars there are going to be 24 blue cars
Answer:
A.
Step-by-step explanation:
its correct
238 students are enrolled in the 7th grade class this year
<u>Solution: </u>
Given that
Percentage decrease in number of students enrolled in 7th grade = 15%
Number of students enrolled last year = 280
Need to determine number of students enrolled in 7th grade this year.
Lets assume number of students enrolled this year = x
<em>Percentage decrease in enrollment </em>= (Number of student enrolled last year – Number of students enrolled this year) whole divided by number of students enrolled last year multiplied by 100

Hence number of students enrolled this year = 238.
.9x-2.1+.9=.2(5-x) multiply .2(5-x)
.9x-2.1+.9=1-.2x; add - 2.1 + .9
.9x-1.2=1-.2x; cancel -2x by adding it by itself and add it on the .9x
1.1x-1.2=1; cancel -1.2 by adding it by itself and add it on the 1
1.1x=2.2; divide 1.1 so it can be canceled and then on 2.2
x=2 :)