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3 years ago

One step inequalities.... 9x<18 how to solve

Mathematics

2 answers:

Sergeeva-Olga [200]3 years ago

6 0

Divide by 9
You will get x<2

Nuetrik [128]3 years ago

5 0

So 9x<18 can be factored out into
9(x)<9(2)
you can divide both sides by 9
x<2

so the solution is any number more than 2, but not 2

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-X2 - x + 42

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Answer:

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Step-by-step explanation:

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3 years ago

Deepak wrote out the steps to his solution of the equation StartFraction 5 Over 2 minus 3 x minus 5 plus 4 x equals negative Sta

Anna35 [415]

Answer:

Step 1 is incorrect.

Step-by-step explanation:

The given expression is :

$\dfrac{5}{2}-3x-5+4x=\dfrac{-7}{4}$

In step 1, Deepak rearranged the terms in order to simplify like terms together that is followed in step 2.

o, rearranging of the terms of an expression is commutative property and not distributive property. The distributive property is generally applicable to multiplication and is given as:

$x(y+z)=xy+yz$

The commutative property is given as:

x+y = y +a

Therefore, adding terms by changing their order is commutative property of addition and not distributive property. Step 1 instruction is wrong.

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3 years ago

Read 2 more answers

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Vitek1552 [10]

$\boxed{\sf \overrightarrow{XV}\:and\:\overrightarrow{XY}}$

$\Large{\underline{\sf Observations:-}}$

Option:-1

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Option-2

This is also given segments so its wrong

Option:-3

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7 0

3 years ago

Please help with 11,12,13

faltersainse [42]

Problem 11

<h3>Answer: h = 2A/b</h3>

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Explanation:

We need to get h by itself. To do so, we first multiply both sides by 2. Then we divide both sides by b

A = (1/2)*b*h

2A = b*h

b*h = 2A

h = 2A/b

================================================

Problem 12

<h3>Answers:</h3>

Equation: (n+2)/5 = 14
Solution to that equation: n = 68

------------------

Explanation:

The number n is increased by 2 to get n+2

Then we divide by 5 to get (n+2)/5

This is set equal to 14 to get the equation (n+2)/5 = 14

Solving the equation would look like this

(n+2)/5 = 14

n+2 = 5*14 .... multiply both sides by 5

n+2 = 70

n = 70-2 .... subtract 2 from both sides

n = 68

================================================

Problem 13

<h3>Answer: Not a solution</h3>

------------------

Explanation:

We'll replace every copy of x with -3 and simplify

-2x + 5 > 13

-2*(-3) + 5 > 13

6 + 5 > 13

11 > 13

The last inequality is false because 11 is not greater than 13. Since the last inequality is false, this makes the first inequality false when x = -3.

Therefore, x = -3 is not a solution.

3 0

3 years ago

Giving brainly if correct show work :)

fenix001 [56]

Answer:

Step-by-step explanation:

Maneesha: 75 % × 37 sunflower seeds equals to 27.75

27.75 is a decimal so rounded off they become 28

her friend: 1/3 × 21 = 7 pumpkin seeds

the total of the seeds will be 28 + 7 = 35 seeds

 

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2 years ago