A fastfood coffee chain sells 840​-gram bags of ground coffee for ​$13.99. Rhonda bought 4.2 kg. How much did she spend on​ coffee?

1 answer

First, we need to determine how many 840g bags are in 4.2 kg.

1 kg is equal to 1000 grams, so 4.2 kg is equal to 4,200 grams.
Each bag is 840 grams.

Therefore, 4.2 kg is equal to 4,200 / 840 = 5 bags.

Rhonda bought 5 bags of coffee, so she spent 5 * $13.99 = $69.95 on coffee.