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Anni [7]
3 years ago
15

Evaluate if x = 2. 9x + 13 A) 5 B) 18 C) 24 D) 31

Mathematics
2 answers:
san4es73 [151]3 years ago
8 0
The Answer is

D) 31 Because 9x+13, 9(2)+13, 18+13, 31
Volgvan3 years ago
3 0

Answer:

:3  the answer is D)

Step-by-step explanation:

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If you are asking for the answer the answer is 0.67.
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5. Ms. Lee has 220 students in all her classes. If her classes collected 2860 pounds of food, how many meals did each student pr
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Answer:

Each students provides 13 pounds of meal

Step-by-step explanation:

Total students in Ms. Lee class = 220

Total pounds of food collected = 2,860

how many meals did each student provide?

Meals provided by each student = Total pounds of food collected / total number of students

= 2,860 / 220

= 13 pounds

Each students provides 13 pounds of meal

Note: 1.2 pounds of food equals one meal

1.2 pounds : 1 meal = 13 pounds : x meals

1.2/1 = 13/x

1.2 * x = 1 * 13

1.2x = 13

x = 13 / 1.2

= 10.83 meals

Approximately 11 meals to the nearest number

Note:1 kilogram is 2.2 pounds

1 kg : 2.2 pounds = x kg : 13 pounds

1/2.2 = x / 13

1 * 13 = 2.2 * x

13 = 2.2x

x = 13/2.2

= 5.91 kilogram

Approximately x = 6 kilograms

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3 years ago
Rue or False: Temperatures above-zero represent negative numbers. *
skelet666 [1.2K]

Answer:

False

Step-by-step explanation:

tempuratures below zero are negative.

3 0
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Population management is essential for development justify the statement​
olya-2409 [2.1K]

Answer:

Population management is important due to the fact that humans rely on different types of animals for food that if we populate to much that we could all run out of food because say if there are 30 humans and 5 pigs even if they both multiply there well still not be enough in the long run. Which throws the balance over nature off. So if we keep on populating we are practically killing are selves, population management is essential if you do not want the human race to die out.

Step-by-step explanation:

3 0
3 years ago
Please can someone help me solve the question in the picture 10 points plus brainliest!!!​
Effectus [21]

Answer:

E. 2 1/2

E. 8.5 cm

C. 6 cm

Step-by-step explanation:

4............................

Scale factor = AE/AC = (4+6)/4 = 10/4 = 2.5

<u>Correct option is</u> E. 2 1/2

5............................

DE = ?

  • DE = √AD² - AE² = √15² - 10² = √125 = 5√3 ≈ 8.66
  • <em>For measure of AD see next question (6)</em>

<u>Close option is</u> E. 8.5 cm

6............................

AB = ?

  • AD/AB = 2.5 <em>the scale factor as per question 4</em>
  • (AB + 9)/AB = 2.5
  • 2.5*AB = AB + 9
  • 1.5*AB = 9
  • AB = 9/1.5
  • AB = 6 cm

<u>Correct option</u> C. 6 cm

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