Question

Where are white blue and red boat in the Marina three fourths of the boats in the Marina are white for seventh of the remaining boats are blueAnd the rest are red if there are nine boats how many boats are in the Marina?

Answer 1

28

Explanation:

Here is the complete question used in answering this question :

Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?

We first have to determine the fraction of the boats that are red

1 - (
`(3)/(4)` +
`(4)/(7)`)

1 -
`(21 + 16)/(28)`

1 -
`(37)/(28)`

1 - 1
`(9)/(28)`

= 9/28

so, 9/28 of the boats are red

let b represent the total number of boats

9/28 x b = 9

to find b, divide both sides of the equation by 28/9

b = 28