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Nimfa-mama [501]
3 years ago
7

Step 1: 7x + 5 > 4x + 2 (Given)

Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer: Step 3: 3x>3 (Subtraction).

Step-by-step explanation:

1- Given the inequality shown in the problem, Zareen should solve it as following:

2-Subtract 4x from both sides:

7x + 5-4x > 4x + 2 -4x\\3x+5>2

(Zareen did this step correctly)

3- Subtract 5 from both sides:

3x + 5-5 > 2-5\\3x>-3

(As you can see, Zareen made a mistake in Step 3, because the subtraction is actually  2-5=-3)

4- Divide both sides by 3, then:

\frac{3x}{3}>\frac{-3}{3}\\\\x>-1

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Ask some people if they got buses and tell them y
8 0
4 years ago
Which choice shows 19 + 32 + 11 rewritten correctly using the commutative property and then simplified correctly?
Nookie1986 [14]

The choice shows 19 + 32 + 11 rewritten correctly using the commutative property and then simplified correctly is option B; 19+11+32= 30+32 = 62.

<h3>What is the commutative property of addition?</h3>

The commutative property of addition says that it doesn't matter how we add two numbers, the result of the addition would be same.

For two numbers x and y, we have:

x + y = y + x

WE have given

19 + 32 + 11

The sum would be 62.

We know that by commutative property of addition,

For two numbers x and y,

x + y = y + x

Thus, if we take 3 numbers as a,b and c, then:

c + a + b = c + b + a

Similarly,

19 + 32 + 11 = 19+11+32

= 30+32

= 62

Therefore, the option B  is the correct answer.

Learn more about properties of addition here:

brainly.com/question/1709448

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6 0
2 years ago
Which of the following angles, when placed in standard position, does not land in quadrant III?
Romashka [77]
  1. your answer would be D,because i just had a quiz but if its not that it is deffenly B thanks for your time if d is right mark Brainliest.Thanks and have a great day.
8 0
3 years ago
Read 2 more answers
Click to see equation, show work pls!
BlackZzzverrR [31]

Answer:

x = 6, 9

Step 1:

To solve this equation, we need to subtract 3 from both sides like this:

3\sqrt{x-5} +3(-3)=x(-3)\\3\sqrt{x-5} =x-3

Step 2:

We square both sides (multiply using FOIL) to get rid of the radical.

(3\sqrt{x-5} )^2 = (x-3)^2\\(3\sqrt{x-5} )^2: 9x-45\\ (x-3)^2: x^2+6x+9\\\\9x-45=x^2-6x+9

If you did not understand how these were done, here is an example:

(x + 1)(x + 2)

First terms: x * x = <u><em>x^2</em></u>

Outer terms: x * 2 = 2x

Inner terms: 1 * x = x

2x - x = <u><em>x</em></u>

Last terms: 1 * 2 =<em> </em><u><em>2</em></u>

x^2 + x + 2

Step 3:

Solve for x:

9x - 45 = x^2 - 6x + 9

x^2 - 6x + 9 (+45) = 9x - 45 (+45)

x^2 - 6x + 54 (-9x) = 9x (-9x)

x^2 - 15x + 54 = 0

Factor:

(x^2 - 6x) + (- 9x + 54)

x(x - 6)        - 9(x - 6)

Factor out (x - 6):

(x - 6)(x - 9) = 0

x - 6 = 0; 6 - 6 = 0

x - 9 = 0; 9 - 9 = 0

Our anwer: x = 6, 9

6 0
3 years ago
Read 2 more answers
Solve by elimination <br> 3x+2y=19<br> -9x+8y=-29
Alja [10]

Step-by-step explanation:

(3x + 2y =19)(3)

-9x + 8y =-29

9x + 6y = 57 <em><u>NOTE</u></em><em><u>:</u></em> we cross here 9x in first

-9x + 8y = -29 we cross here - 9x in second

Since 9x and - 9x are opposite

___________

6y +8y = 57 - 29

14y = 28

Y=28/14

Y=2

Replace y in second equation of this system:

-9x + 8y = - 29

-9x +8(2)= - 29

-9x + 16 = - 29

-9x = -29 - 16

-9x = - 45

X= -45/-9

X=5

Hope this helps..

4 0
4 years ago
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