Question

Salina was at a party and she noticed that the room had 54 balloons. For every red balloon there were 2 yellow balloons and 3 blue balloons.
How many blue balloons were there?

Answer 1

so let's take a peek at ONE red balloon

if you see ONE red one, how many more yellow are there
and how many blue ones are there?

Answer 2

2 and 3

Answer 3

so if for every red balloon you notice, there'll be 2 yellow ones and 3 blue ones

how many red ones are there? well, we dunno
let's say the quantity of red ones is \(\bf \text{"r"}\)
so there are "r amount" of red balloons

how many yellow ones? well 2 per each red one, twice as much
so if there are "r" red balloons, there'll be \(\bf \text{"2r amount"}\) of yellow ones

how many blue ones? well, there are 3 per each red one, so thrice as much
so if there are "r" red balloons, there'll be \( \bf \text{"3r amount"} \) of blue ones

we know there's a total of 54 balloons in the room

Answer 4

so we can say that
r + 2r + 3r = 54

# if you solve that by "r" you'd know how many red ones are there

if you want to know how many blue ones, well, 3 times that much

Answer 5

18??

Answer 6

hmm how many did you get for "r"?

Answer 7

well...you got the amount of yellow ones