HI I NEED HELP FOR 80 POINTS There are white, blue, and red boats in a marina. Three-fourths of the boats in the marina are white, 4/7 or the reminding are blue and the rest are red if there are 9 red boats how many boats are in the marina!!!

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Step-by-step explanation:

( 1 / 6 ) * ( 2 / 5 ) = 1 / 15. This means that 1 / 15 of the boats in the marina are blue.

To get the fraction of the number of red boats in the marina, we can do 1 - ( 1 / 15 ) - ( 5 / 6 ).

1 - ( 1 / 15 ) - ( 5 / 6 ) = 1 / 10, so we know that 1 / 10 of the boats in the marina are red.

Now we know that there are 12 red boats in total, and red boats make up 1 / 10 of all the boats in the marina. All you have to do next is multiply 12 * 10, and you'll get the answer to how many boats are in the marina.

Good luck, and I hope this helps.

like 40 boats in the marina

Step-by-step explanation:

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15 units is the perimeter of the resulting triangle among the choices given in the question. It can be found by simply getting the half of the diameter of the actual triangle. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope the answer helps you.