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scZoUnD [109]
3 years ago
10

Does ω+1=1+ω? I know the answer but want to teach about it.

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer: I see my first answer was deleted. The answer is yes.

Step-by-step explanation: Let's substitute a number for w. First, let's try 4. 4+1 = 1+4 because of the commutative property of addition. 4 + 1 = 5 and 1 + 4 = 5. As far as I know, no matter what number you would use for w, w+1 will always be equivalent to 1+w.

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Simplify this equation<br> -5x+7&gt;22
Lana71 [14]

Answer:

<h2>x < - 3</h2>

Step-by-step explanation:

- 5x + 7 > 22

Move 7 to the other side of the inequality

- 5x > 22 - 7 \\  - 5x > 15

Divide both sides by - 5

\frac{ - 5x}{5}  >  -  \frac{15}{5}  \\ x >  - 3

Reverse the sign

We have the final answer as

<h3>x < - 3</h3>

Hope this helps you

4 0
3 years ago
Please help me with number six
Tpy6a [65]

w = 2x = 2( \frac{y}{3}) \\ v = 2w = 2 \times 2( \frac{y}{3} ) \\ v + w  + x + y = 180 \\  \frac{4}{3} y +  \frac{2}{3} y +  \frac{y}{3}  + y = 180 \\ y( \frac{4}{3}  +  \frac{2}{3}  +  \frac{1}{3}  + 1) = 180 \\ y =  \frac{180}{()}
5 0
3 years ago
. Duke's photography pays $9 for a 5x7 photograph.
g100num [7]

Answer:

the markup percentage is 66.67%

Step-by-step explanation:

The computation of the percent of markup based on cost is shown below:

= (Selling price - paid price) ÷ (paid price)

= ($15 - $9) ÷ ($9)

= 66.67%

By taking the difference of the selling price & paid price and then divided it by paid price we can get the percentage of markup

Hence, the markup percentage is 66.67%

5 0
3 years ago
Look at this shape:which image shows a reflection?
masha68 [24]

Answer:

C shows the reflection.

Hope this helps! :)

8 0
3 years ago
Read 2 more answers
....................
pickupchik [31]

Answer:

complimentary x=5

Step-by-step explanation:

90degrees - 65degrees= 254degrees

25/5=5

x=5

3 0
2 years ago
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