Answer:
They are 108 8th graders at Jefferson Middle School
Step-by-step explanation:
324 x 5/12 = 135 7th graders
324 x 3/12 = 81 9th graders
324 x 4/12 = 108 8th graders
Answer:
3 miles per hour
Step-by-step explanation:
he runs 1/3 mile in 1/9 of an hour
then
he runs (we multiply both sides by 9)
9×(1/3) mile in 9×(1/9) of an hour
then
he runs
(9/3) mile in (9/9) of an hour
then
he runs
3 mile in 1 hour
Answer:

Step-by-step explanation:
Given

Required
Calculate the difference
We start by factorizing the denominator of both fractions




Take LCM

Open Brackets


This can't be simplified any further;
Answer:
No solutions
Step-by-step explanation:
Open parenthesis:
4x-28>-26+4x
Move all like terms to one side:
-28-26>4x-4x
-54>0
-54 isn't greater than 0, so that means that there are no solutions.
:)
Answer:
True
Step-by-step explanation: