Question

1. lupita has 18.9 grams of baking soda. she needs one tenth of this amount for a science experiment. how many grams of baking soda does she need for the experiment?

Explanation:

Step1: Identify the operation

We need to find one - tenth of 18.9 grams. This means we multiply 18.9 by $\frac{1}{10}$.
$18.9\times\frac{1}{10}$

Step2: Perform the calculation

$18.9\times\frac{1}{10}=1.89$

Answer:

1.89