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3 years ago

Name three real life situations in which you would use a positive number

1 answer:

5 0

Hello.

Describing to someone your height; It would be nonsense telling you have -1 meter, for example.

Describing your age; An age of -3 years is meaningless.

Counting the number of inhabitants in a city. Again, a city with -3000 inhabitants can not exist.

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Brooke says there are 49 days until 4th of July. There are 7 days in a week. In how many days will it be 4th of July??

nignag [31]

In real life, there are 35 days until the 4th of July.

In the problem, if Brooke is correct, there are 49 days until the 4th of July.

This question is weird.

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3 years ago

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Energy is required in order to produce any sound. A. True B. False

Vikki [24]

Answer: a. True

Step-by-step explanation:

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A fee charged of $2.50 is it positive or negative

ASHA 777 [7]

Positive because you will said that has the charged is about $2.50

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Isaac is 3 years older than Rachael. In 4 years the sum of their ages will be 75. How old is Isaac now?

MatroZZZ [7]

Answer:

36 years old

Step-by-step explanation:

let x = age of Rachael

2x+3 = current ages combined

[(2x+3)+4]+4 = 75

2x+11 = 75

2x = 75-11

2x = 64

x = 32

Rachel is 32 years old. Isaac is 3 years older, which is 35 years old.

Hope this helped! If you need any help, tell me in the comments.

6 0

3 years ago

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They want me to put something here and the question is the picture

arsen [322]

Answer:

D. (1, -2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

5x - 2y = 9

3x + 4y = -5

Step 2: Rewrite systems

10x - 4y = 18

3x + 4y = -5

Step 3: Solve for x

Add to equations together: 13x = 13
Divide 13 on both sides: x = 1

Step 4: Solve for y

Define: 3x + 4y = -5
Substitute in x: 3(1) + 4y = -5
Multiply: 3 + 4y = -5
Isolate y term: 4y = -8
Isolate y: y = -2

And we have our final answer!

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3 years ago