Answer:
294.84
should be correct, I used a calculator.
Answer:
Age of teacher = 32 years
Step-by-step explanation:
Average age of 15 students = 16 years
Sum of age of 15 students = 16 * 15 = 240 years
Average of age 15 students and a teacher = 17 years
Sum of age 15 students and a teacher = 17 * 16 = 272 years
Age of teacher = 272 - 240 = 32 years
We can chang efractions to compare them by multiplying them by 1 or x/x where x=x so
1/2=7/12?
make bottom numbers equal
2 times what=12
divide 2
what=6
1/2 times 6/6=6/12
6/12=7/12
6=7
false
so therefor it does NOT equal 7/12
This is 1/2)2=1/4 hope this helps
