If 100 students make up 40% of the 6th grade population, then 50 students make up 20% of the 6th grade population. 20% × 5 makes 100% so if your multiply 50 by 5 you'd get your population.
50 × 5 = 250 sixth-graders
I'm more visual, but if you're not, and this confuses you, ask me, and I'll explain it.
Answer:
1
2
− 1
9
8
Step-by-step explanation:
Answer:
1.8
2.-1/8
Step-by-step explanation:
Just take the number next to the x for #1 Just take the x away and for #2 just make a fraction by doing this 1/8

change

given you

making x the subject by transferring the -19 to the right hand side of the equation


dividing through by 5


{
}
also given

change the operation sign to =



dividing through by -4


so the truth set is
{x:x>9/4}.
The < sign changes to > because we divided by a negative number when solving for x