Question

lisa and elijah share a 30 - ounce box of cereal. by the end of the week, lisa has eaten \\(\frac{3}{10}\\) of the box, and elijah has eaten \\(\frac{3}{5}\\) of the box of cereal. how many ounces are left in the box? solve on paper. then check your work on zearn. there are \\(\square\\) ounces left in the box.

Explanation:

Step1: Calculate Lisa's eaten amount

$\text{Lisa's portion} = 30 \times \frac{3}{10} = 9$ ounces

Step2: Calculate Elijah's eaten amount

First convert $\frac{3}{5}$ to tenths: $\frac{3}{5} = \frac{6}{10}$
$\text{Elijah's portion} = 30 \times \frac{6}{10} = 18$ ounces

Step3: Total eaten cereal

$\text{Total eaten} = 9 + 18 = 27$ ounces

Step4: Find remaining cereal

$\text{Remaining} = 30 - 27 = 3$ ounces

Answer:

3