Let F ⊆ N be the set of all factors of 210. In the poset (F, |), find the following. (a) 70 ∧ 21, the meet of 70 and 21

(b) 15 ∨ 35, join of 15 and 35

(c) 2 ∧ 3

(d) 2 ∨ 3

(e) ¬70, the complement of 70

i dony know

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x