Answer:
Step-by-step explanation:
Let the height of the trees are h1,h2 and h3,
Then,we know that
Mean height=(h1+h2+h3)/3
Answer:
1. 60% (decrease by 40%)
3. 30% (decrease by 70%)
5. 250% (Increase by 150%)
7. 40% (Decrease by 60%)
9. 171.4% (increase 71.4%)
11. 152.6% (Increase by 52.6%)
Step-by-step explanation:
1. 20x = 11 = 0.55 rounds to 0.6 => 60%
3. 56 x = 14 = 0.25 rounds to 0.3 => 30%
5. 18x = 45 = 2.5 => 250%
7. 126x = 48 = 0.38 rounds to 0.4 => 40%
9. 42x = 72 = 1.714 => 171.4%
11. 95x = 145 = 1.526 => 152.6%
Answer:
75+45+35
Step-by-step explanation:
Add all the numbers
Where is the method 1 and 2?
