if a jar Of marbles reads a scale of 474 g but an empty jar weighs 439 g in each marble weighs 5 g how many marbles are in the jar

Question

if a jar Of marbles reads a scale of 474 g but an empty jar weighs 439 g in each marble weighs 5 g how many marbles are in the jar

Answer 1

The weight of the marbles (let's call it m) is the weight of the jar of marbles (lets call it j) minus the weight of the empty jar (let's call it e). Like this:

m = j - e.

So the weight of the marbles is 474 grams - 439 grams, which is 35 grams.

Now, since each marble weighs 5 grams, you divide the total weight of the marbles (35 grams) by the weight of an individual marble (5 grams) to get the number of marbles.

35 grams / 5 grams = 7 marbles.

So there are 7 marbles in the jar.