Question

1. an empty can weighs 30 grams. the weight of the same can filled with liquid is 47.3 grams. which equation the liquid?

$30 + 47.3 = w$
$w + 47.3 = 30$
$47.3 + w = 30$
$w + 30 = 47.3$

Explanation:

Step1: Define Variables

Let \( w \) be the weight of the liquid. The empty can weighs 30 grams, and the filled can (can + liquid) weighs 47.3 grams.

Step2: Set Up the Equation

The weight of the liquid (\( w \)) plus the weight of the empty can (30 grams) should equal the weight of the filled can (47.3 grams). So the equation is \( w + 30 = 47.3 \).

Answer:

\( w + 30 = 47.3 \) (the last option, assuming the options are ordered as shown: the fourth option with \( w + 30 = 47.3 \))