solution for the problem-
X=-22
Answer:
h = 19cm
Step-by-step explanation:
The area of a parallelogram =
A = bh
285cm² = 19×h
285 = 19h
divide by 19
285/19 = 19h/19
h = 15cm
So in 30 min will hike 2 1/4 miles =9 of those 1/4 miles therefore in 10 min will hike 9/3 =3 of those 1/4 miles = 3/4 of a mile
3/4 mile in 10 min;
(3/4)• 4 = 3 miles in 40 min;
6 miles in 80 min;
9 miles in 120 min;
12 miles in 160 min;
15 miles in 200 min;
18 miles in 240 min or 4 hours