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daser333 [38]
4 years ago
15

Can someone help me with #3? Please and thank you.

Mathematics
2 answers:
irga5000 [103]4 years ago
8 0
The answer is 42 cause you do ( 18*28=12x) wich is 504=12x which equals 42
Dahasolnce [82]4 years ago
7 0
Assuming that this is a proportional question, the answer would be 42.
I hope this helps you.
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Sheila predicts that 480 people will attendthe fall concert. There was an actual total of 350 people who attended the fall conce
iris [78.8K]

Answer:

27 %

Step-by-step explanation:

Given that Sheila predicts that 480 people will attendthe fall concert and There was an actual total of 350 people who attended the fall concert.

We know that

Percent error = \frac{people present-predicted people}{predicted people}\times100

Percent error = \frac{480-350}{480}\times100

Percent error = 27 %

5 0
3 years ago
Sketch the smallest positive such angle. As well as find the six trig functions.
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3 years ago
Solve the system of equations below x-2y=3 <br><br> 2y-3y=9
Crank
First you solve 2y-3y=9.
2y - 3y = 9 \\ subtract \: 2y \: and \: 3y \\  - y = 9 \\  divide \: by \:  - 1 \\ y =  - 9
Now that you have y, then you substitute y into x-2y=3 to find X

x - 2( - 9) = 3 \\ multiply \:  - 9 \times  - 2 \\ x + 18 = 3 \\ subtract \: 18 \: on \: both \: sides \\ x =  - 15
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6 0
4 years ago
Each of the following correctly match an English phrase with a mathematical expression
pshichka [43]
Each of the following correctly match an English phrase with a mathematical expression except _____. 


<span>A) a number times seven, 7x </span>
<span>B) a number subtracted from seven, 7 - x </span>
<span>C) the sum of a number and seven, 7 + x </span>
<span>D) a number divided by 7, 7/x 

if this is ur question...answer is D...should be x/7</span>
4 0
3 years ago
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Svetlanka [38]

Answer:

x > 8

Step-by-step explanation:

Given

2x + 3 > 19 ( subtract 3 from both sides )

2x > 16 ( divide both sides by 2 )

x > 8

5 0
3 years ago
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