Question

Peter is planting trees in his yard. He wants the ratio of pine trees to oak trees to be 6 to 2. Peter wants to plant a total of 72 trees. How many pine trees should he plant?

Answer 1

if he plants 6 oak and 2 pine, then you should notice two things:
he planted a ratio of
\[ \frac{6 \ oak}{2 \ pine} \]
which btw simplifes to 3/1

also, he planted a total of 8 trees

Answer 2

know the total is 8, you can make up other ratios:
\[ \frac{num\ of \ oak}{total} = \frac{6}{8} \]
or
\[ \frac{num\ of \ pine}{total} = \frac{2}{8} \]

Answer 3

now try to fit
a total of 72 trees
into the last ratio. where does the 72 go ?

Answer 4

umm idk im not very good at these

Answer 5

is 72 the number of pine trees, the number of oak trees or the total number of trees?

Answer 6

the total number of trees

Answer 7

yes, 72 is the total number of trees

the question asks
How many pine trees should he plant?

I think it's obvious we don't know that number. So call it x for "unknown"

can you write the fraction number of pine trees divided by total number of trees ?
just the fraction?