Question

the weight of a cup filled with water is 2.58 kg. the weight of the empty cup is 1.5 kg. what is the weight of the water in the cup? give your answer with the correct number of significant figures.
___ kg

Explanation:

Step1: Identify the formula

Weight of water = Weight of cup with water - Weight of empty cup

Step2: Substitute the values

$2.58 - 1.5=1.08$ kg
Since 1.5 has one decimal - place, the result should be rounded to one decimal - place. So, $1.08\approx1.1$ kg

Answer:

$1.1$