Question

A standard hot tub holds 2.3 kiloliters of water. After filling up two of nine hot tubs, Johnson's water service truck empties. How many liters of water are still needed to fill the remaining tubs?

Answer 1

Balance `color(brown)((9-2=7) seven` tubs will need `color(green)(= 20.7 Kl` of water

Explanation:

A standard water tub holds #`color(white)(aaa ) = 2.3 Kl`

Number of tubs filled `color(white)(aaa aaa aaaa aaa aaa aa) = 2`

Two tubs will hold `color(white)(aaa aaa aaa aaa aaa aaa aa) = 2.3 * 2 = 4.6 Kl`

Balance number of tubs to be filled `color(white)(aaa aa aaa) = 9 - 2 = 7`

Seven tubs will hold `color(white)(aaa aaa aaa aa aaa aaa aa ) = 2.3 * 9 = color(green)(20.7 Kl`