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asambeis [7]
3 years ago
15

Please someone help me with maths​

Mathematics
2 answers:
Nata [24]3 years ago
6 0

Answer:

<em>a</em><em>)</em><em>=</em><em> </em><em>5x</em><em>+</em><em>10</em>

<em>b</em><em>)</em><em>=</em><em> </em><em>7y-6</em>

<em>c</em><em>)</em><em>=</em><em> </em><em>6x-6</em>

<em>d</em><em>)</em><em>=</em><em> </em><em>2x</em><em>^</em><em>2</em><em>+</em><em>8x-5</em>

<em>e</em><em>)</em><em>=</em><em> </em><em>6x</em><em>+</em><em>9</em>

<em>f</em><em>)</em><em>=</em><em> </em><em>4xy-4y</em><em>^</em><em>2</em><em>+</em><em>8y</em>

<em>g</em><em>)</em><em>=</em><em> </em><em>-12y</em><em>^</em><em>2</em><em>+</em><em>10y</em>

<em>h</em><em>)</em><em>=</em><em> </em><em>6x</em><em>+</em><em>154</em>

<em>i</em><em>)</em><em>=</em><em> </em><em>6x</em><em>+</em><em>21</em>

<em>h</em><em>)</em><em>=</em><em> </em><em>2x</em><em>^</em><em>2</em><em>+</em><em>16</em>

emmasim [6.3K]3 years ago
6 0
Sorry if my answer is wrong. ive try my best

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Evgesh-ka [11]
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4 0
2 years ago
How do i simplify 35 − 5 ⋅ 2 + 16 ÷ 4?
kvv77 [185]

Just solve the equation! if the dot means multiply, then

35 - (5 x 2) + (16 / 4) because of BIDMAS or PEDMAS or whatever abbreviation you use, where the order is Brackets Indices Division Multiplication Addition and Subtraction.

35 - 10 + 4 = 29

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Hope I helped!

4 0
3 years ago
Read 2 more answers
Out of 30 questions, Ahmad answer 12 of them incorrectly. What percent of the questions did he answer correctly?
kati45 [8]
First, you would need to determine how many questions he got correct. 
30 - 12 = 18

Next, you would need to create an equation for this problem. Let x represent the unknown percentage. 
\frac{18}{30} = \frac{x}{100}

Now, you would cross multiply. 
30x = 1,800

The last step would be to isolate the x. To do this, you would divide both sides of the equal sign by 30. 
x = 60

Ahmad got 60% of the questions correct. 

I hope this helps!
7 0
3 years ago
The original price and percent paid of a 20% discount and a $14.40 sale price.
Vikentia [17]
Your answer is $18.00

Because 14.40 x 100/80 =$18

Hope this helps

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3 0
3 years ago
Xto the 2nd power - 49 = 0
AnnZ [28]

Answer:

7 to the second power... because 7 times is 49 and 49-49 is 0... so 7 to the second power

6 0
3 years ago
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