Question

Tia takes $50 from her bank account to pay for bus fare for the month. She does this each month for 7 months in a row. Which equation models this situation and represents the change it causes in Tia's bank balance?


(
−
50
)
⋅
(
−
7
)
=
350


(
−
50
)
⋅
7
=
−
350


(
−
50
)
−
7
=
−
57


50
⋅
(
−
7
)
=
350

Answer 1

(−50) ⋅ 7 = −350

Each month she withdraws $50 (change = −50) for 7 months, so the total change is −50 × 7 = −350.