Respuesta :
3 Bottles of water would cost $7.50. Since 4 water bottles cost $10, then you do 10 divided by 4 and get 2.5. $2.50 is how much one bottle of water costs. So you do 2.5 times 3 to get the answer.
[tex]10 \div 4 = 2.5 \\ 2.5 \times 3 = 7.5[/tex]
Answer:
The 3 bottles of water will cost:
$ 7.5
Step-by-step explanation:
It is given that:
4 bottles of water cost 10 dollars at a music festival.
This means that 1 bottle of water will cost:
Cost of 4 bottles/4= $ (10/4)=$ (5/2)
Hence, the cost of 3 bottles will be:
cost of 1 bottle×3
= $ (5/2)×3
= $ (15/2)
= $ 7.5
Hence, the cost of three bottles of water will be: $ 7.5