
Victoria V. answered 12/15/18
Math Teacher: 20 Yrs Teaching/Tutoring CALC 1, PRECALC, ALG 2, TRIG
Hi Olivia,
We need to translate the words "product" to MULTIPLY and "at least" to GREATER THAN OR EQUAL TO.
So in math symbols, this says
a * (-10) > -40
We need to isolate "a", so we will divide by (-10).
But with an INEQUality, when multiplying or dividing by a NEGATIVE number, the inequality must FLIP. So this becomes
a < 4 which is the answer.