Answer:
Step-by-step explanation:
what we know is that 45% of the total was 180 (they voted red)
55% of the total voted blue.
To find the total, we need to set up a cross-multiplication equation
180/45 = ?/100
180 times 100 is 18000
18000/45 = 400
400 students were surveyed in total
we can check this by getting 55% of this, and adding it to 180.
If it equals to 400, then we're right.
55% of 400 = 220
220 + 180 = 400
please give brainliest! hope this helps :)