tacoursey1987p6xy9s
29.10.2020 •
Mathematics
A group of students wants to determine the favorite snack food at their school. They know they should use a sample
because the student population at their high school is 5,000. What is the best way for them to get a random sample of
100 students?
Ask the teachers at the school their opinions.
Ask every 20th student until they reach 100 students.
Ask the first 100 students that get off the bus in the morning.
Ask all the students in the cafeteria during one of the four lunch periods.
Solved
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Ответ:
x= 5 shirts
Step-by-step explanation:
rewrite equation:
12x+3=8x+23
(now u have to combine like terms so it's letters on one side of the equal sign and numbers on the other.)
12x-8x=23-3
(simply solve on each side of the equation to get...)
4x=20
and 20/4 is 5 so therefore it's 5 shirts.