Last year there were 221 students and 13 teachers at Hillard School. This year there are 272 students. The principal wants to keep the same student-to-teacher ratio as last year. Which proportion can the principal use to find x, the number of teachers needed this year? StartFraction 272 over 221 EndFraction = StartFraction 13 over x EndFraction StartFraction 221 over 272 EndFraction = StartFraction x over 13 EndFraction StartFraction 221 over 13 EndFraction = StartFraction 272 over x EndFraction StartFraction 13 over 221 EndFraction = StartFraction 272 over x EndFraction

see explanation

Step-by-step explanation:

Using proportion to find the teachers required x, then

= ( cross- multiply )

221x = 3536 ( divide both sides by 221 )

x = 16

The number of teachers required this year is 16

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )