All the students in the 6th grade either purchased their lunch or brought their lunch from home on monday. how many students are in the sixth grade if 24% of the students purchased their lunch.190 students brought their lunch from home

 250 students.

Step-by-step explanation:

Let x students in 6th grade either purchased their lunch or brought their lunch from home on Monday.

According to the question,

24% of the students purchased their lunch.

⇒ (100-24)% of the student  brought their lunch from home.

⇒ 76 % of the student  brought their lunch from home.

But, Again according to the question,

190 students brought their lunch from home.

⇒ 76 % of x = 190

⇒

⇒  

⇒  

⇒ x = 250

Therefore, there are total 25 students in the 6th grade.

You can use the fact that all students got lunch to know how much percent of students brought their lunch from home.

The count of students in 6th grade is 250

We know that 24% had purchased the lunch.

And 190 students brought lunch from home.

Thus, if we could convert those 24% back to numbers, then we can add 190 and the obtained count to get the number of students in grade 6.

Since total 100% students are there, and 24% students purchased lunch and since all students got their lunch with them, thus we have:

But we already know that total 190 students brought their lunch from home, thus:

Thus, total there are 190 + 24% = 190+60 = 250 students in 6th grade.

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c) yes, because of asa or aas

d.) 48 units

step-by-step explanation: