<h2>
Answer:</h2>
The number of trees which are less than 20 meters are:
9
<h2>
Step-by-step explanation:</h2>
Based on the histogram we are asked to find the number of trees which are less than 20 meters in height.
Class interval Frequency
4-8 1
8-12 2
12-16 2
16-20 4
20-24 6
24-28 4
28-32 2
i.e. we are asked to find the total number of tress that lie in the class interval 4-20.
i.e. we add the frequencies that lie in the interval 4-20
i.e. Number of trees= 1+2+2+4=9 trees.
Answer:
Step-by-step explanation:
A kilogram %30 chocolate,
b kilogram %50 chocolate,
a+b = 100 kilogram chocolate,
48.(a+b) = 30.a + 50.b
48a + 48b = 30a + 50b
18a = 2b
b = 9a
a+b = a + 9a = 10a = 100 kg
a = 10 kg
b = 9.a = 90 kg
You should use,
10 kg %30 chocolate,
90 kg %50 chocolate
Well, if it was out of 50, it would be 76%.
So the answer might be 50 questions total, but maybe there was 49 questions total.
I would probably go with 50 questions total.
10x
8x-2
6x+4
They all simplify