Answer:
50)
a. + 13
B. +10
C. -15
D. -5
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
21×43
=(20+1)×(40+3)
=800+40+60+3
The grade of the path in the mountain is calculated by determining first the ratio between the rise over the run and multiplying the ratio by 100%.
For Path A:
grade = (rise / run) x 100%
grade = (1414/ 3535) x 100% = 40%
<em>Answer: 40%</em>
For Path B:
grade = (rise / run) x 100%
grade = (4.26 m/ 22 m) x 100% = 19.36%
Answer: 19.36%
