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melamori03 [73]
3 years ago
5

-2 X-9=3. Please help 3

Mathematics
2 answers:
netineya [11]3 years ago
8 0
X=-6 i hope this help
antoniya [11.8K]3 years ago
3 0

Answer:

x = -6

Step-by-step explanation:

-2x - 9 = 3

solve for x by inverse operations

-2x - 9 = 3

     +9    +9

-2x = 12

/-2    /-2

x = -6

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The estimated population of Los Angeles in 2019 was 3,979,576. Its area is 469 square miles. What is the population density of L
vladimir2022 [97]

Given that, the estimated population of Los Angeles in 2019 was 3,979,576 and its  area is 469 square miles, the population density of Los Angeles is  8486 people per square miles.

<h3>What is the population density of Los Angeles, in people per square mile?</h3>

Population density simply the measurement of population per unit area.

It is expressed as;

Population density = Number of people / Area

Given the data in question;

  • Number of people in Los Angeles N = 3,979,576 people
  • Area of Los Angeles A = 469 square miles
  • Population density = ?

We substitute the given values into the above equation.

Population density = Number of people / Area

Population density = 3,979,576 people / 469 square miles

Population density = 8485.23667 ≈ 8486 people per square miles

Given that, the estimated population of Los Angeles in 2019 was 3,979,576 and its  area is 469 square miles, the population density of Los Angeles is  8486 people per square miles.

Learn more about population density here: brainly.com/question/1581160

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4 0
2 years ago
Simplify: -3(4x - 5)
nata0808 [166]

Answer:

8x - 26 \\ -16x - 4 \\ -12x + 15

Step-by-step explanation:

2(4x - 8) - 10

8x - 16 - 10

|_______|

8x - 26

-5x + 8 - 11x - 12

___ ___ _____ ____

___ ____

-16x - 4

-3(4x - 5)

-12x + 15

For the third and first exercises, you just use the Distributive Property, and for the second exercise, all you are doing is combining like-terms.

I am joyous to assist you anytime.

7 0
3 years ago
If b=p+5 and a=p^2+10p+1 find an expression that equals 2b+3a in standard form
olya-2409 [2.1K]

Answer:

3p² + 32p + 13

Step-by-step explanation:

Okay, so lets first solve for 2b. 2b = 2(p + 5), which is equal to 2p + 10. Now, let's solve for 3a. 3a = 3(p² + 10p +1), simplifying to 3p² + 30p +3. After adding 2b and 3a, we are able to get 2p + 10 + 3p² + 30p + 3 = 3p² + 32p + 13

8 0
2 years ago
Please answer this question<br><br> ONLY ANSWER IF YOU KNOW FOR SURE
Fittoniya [83]
The answer is 540 m2 hope this helps
7 0
3 years ago
Read 2 more answers
Which property or properties of arithmetic do you use when you calculate 3×70 by first calculating 3×7 = 21 and then putting a z
ANEK [815]
The property used is the Associative property

3 × 70 = 3(70) = 3 (7×10) = (3×7) ×10

The formula is

a × bc = a (bc) = a (b×c) = (a×b) ×c
3 0
3 years ago
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