Find cos x if sin x=-1/5 and x is in quadrant lll

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Which number produces a rationale number when multiplied by 1/5

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.