Question

which problem could be solved with the expression (5 + 5 + 2) × 3?
choose 1 answer:
a mandi planted 3 flowers in the morning and 2 flowers in
the afternoon. she did this for 5 days. how many
flowers did she plant?
b alexis builds toolboxes. she built 5 in the morning, 5 in
the afternoon, and 2 at night. she did this for 3 days.
how many toolboxes did she build?
c sierra played pretend for 5 hours on monday. she then
played 5 hours on tuesday. she played the same amount
for 2 weeks. how many hours did she play?

Explanation:

Step1: Analyze Option A

Mandi plants 3 + 2 flowers per day, for 5 days. The expression would be \((3 + 2) \times 5\), not \((5 + 5 + 2) \times 3\).

Step2: Analyze Option B

Alexis builds \(5 + 5 + 2\) toolboxes per day, for 3 days. The expression is \((5 + 5 + 2) \times 3\), which matches.

Step3: Analyze Option C

Sierra plays \(5 + 5\) hours per week, for 2 weeks. The expression would be \((5 + 5) \times 2\), not \((5 + 5 + 2) \times 3\).

Answer:

B. Alexis builds toolboxes. She built 5 in the morning, 5 in the afternoon, and 2 at night. She did this for 3 days. How many toolboxes did she build?