Answer:
The number of people in the junior class = 180 people
Step-by-step explanation:
let number of people in junior class be x
By 7:00PM, 1/3 of the junior class had arrived at a school dance. This means x/3 juniors arrived by 7:00 PM
By 8:00PM, 30 more juniors had arrived, raising the attendance to 1/2 of the junior class. This means that 30 juniors plus 1/3 of the total number of juniors equal 1/2 of the total number of juniors
30 + x/3 = x/2
(90+x)/3 = x/2
Cross multiplying
2(90+x) = 3x
180 +2x = 3x
180 = 3x-2x
180= x
x = 180
Linear that is it ugh i needed to make it 20 characters ok
Numbers 3,4,5 make this inequality true
8+3=11
8+4=12
8+5=13
Hey There!
Here is the answer:
First write the formula for Volume: a×b×c (b,w,and h)
9×3×5=135
Which mean the volume is 135!
=135
Hope this helps!