Use converting units.

The aquarium contains 1250 mL of water. How much more water is needed to fill the aquarium completely? Give your answer in Litres. Hint: Each side is 15cm

1 answer

We can start by finding the volume of the aquarium in cubic centimeters (cm³), since the dimensions are given in centimeters. The aquarium is a rectangular prism with height, length, and width of 15 cm each, so:

volume = height x length x width
volume = 15 cm x 15 cm x 15 cm
volume = 3375 cm³

Now we need to convert this volume to milliliters (mL), since the initial amount of water given is in mL. We know that 1 cm³ is equivalent to 1 mL, so:

3375 cm³ = 3375 mL

Therefore, the aquarium can hold up to 3375 mL of water. Since it currently contains 1250 mL, we can find the amount of additional water needed by subtracting:

additional water = 3375 mL - 1250 mL
additional water = 2125 mL

Finally, we can convert this amount to liters (L) by dividing by 1000 since there are 1000 mL in 1 L:

additional water = 2125 mL ÷ 1000
additional water = 2.125 L

Therefore, we need 2.125 more liters of water to fill the aquarium completely.