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77julia77 [94]
3 years ago
12

In a wood there are 420 silver birch trees 160 oak trees and 300 wild cherry trees what percentage is the oak trees give answer

to 1 decimal place
Mathematics
2 answers:
frosja888 [35]3 years ago
6 0
That would be 7.2 if my calculations are correct
Yuliya22 [10]3 years ago
6 0

Answer: 18.2\%

Step-by-step explanation:

Given : The number of silver birch trees = 420

The number of oak trees = 160

The number of wild cherry trees =300

The total number of trees = 420+160+300=880

Now, the percentage of oak trees :-

\dfrac{\text{Number of oak trees}}{\text{Total trees}}\times100\\\\=\dfrac{160}{880}\times100=18.1818181818\approx18.2\%

Hence, the percentage of oak trees =18.2\%

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Vera_Pavlovna [14]
Each 2 triangles should be congruent to each other
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We could evaluate the expression 2(20+7) + 3(50+2) using the traditional order of operations, or we could use the distributive p
KonstantinChe [14]

Answer:

It is more efficient to use order of operations because with the distributive property, you would have to multiply four times and add once (5 things to do), whereas with order of operations, you have to add twice and multiply twice (4 things to do).

Step-by-step explanation:

4 0
3 years ago
Use the diagram below to answer questions 1-6. All rooms are rectangular. 1. What is the value of side A? Explain your thinking.
Anastasy [175]
  1. The answer is A = x since the opposite sides of a rectangle are the same length.
  2. We'll have B = 9x+2 since this must add to x+4 to result in 10x+6. You could also do (10x+6) - (x+4) and you'll end up with 9x+2.
  3. On the far left side, (5x-3)+A = 5x-3+x = 6x-3. The far right side must add to this. So, x+C+x-2 = 6x-3 turns into C = 4x-1 after isolating C.
  4. Multiply out (5x-3) with (9x+2) to get the full area of 45x^2-17x-6. The steps are shown below

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You could also use the FOIL rule to get this answer. The box method is another alternative.

4 0
3 years ago
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elena-14-01-66 [18.8K]

If i am correct, these values should add to 360, so I do it by

140 + 110 + 62 = 312

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So the value of the last side must equal 48.

Your answer would be x = -9. Proof:

If 9 is filled in, you would have

(3 - 5(-9))

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Then

48 + 140 + 110 + 62 = 360!

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

4 0
3 years ago
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Sveta_85 [38]

Answer:4/125

Step-by-step explanation:

5 0
3 years ago
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