Answer: the number of boats that are in the marina is 105.
Step-by-step explanation:
Let x represent the number of boats that are in the marina.
Two-thirds of the boats in the marina are white. It means that the number of white boats in the marina is
2/3 × x = 2x/3
The remaining number of boats will be
x - 2x/3 = x/3
4/7 of the remaining boats are blue. It means that the number of boats that are blue is
4/7 × x/3 = 4x/21
The number of boats left would be
x/3 - 4x/21 = 3x/21
If there are 15 red boats, it means that
3x/21 = 15
3x = 21 × 15 = 315
x = 315/3
x = 105
The correct answer is: 2x+3y=24
Answer: I think its b
Step-by-step explanation:
If you add 4+4+4+4+6+6 you will get 24
So you will need 24 fr
Answer:
5.9km
Step-by-step explanation:
this would b solved using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
1.2² + 5.8² = c²
1.44 + 33.64 = c²
35.08 = c²
c = 5.9 km
