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Vlad [161]
3 years ago
5

5 x + 4y= 16 X+y = 3.5 Find out what each letter is equal to X= Y=

Mathematics
1 answer:
klemol [59]3 years ago
5 0
X=4
Y=-0.5

Do you need an explanation?
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How do you solve 42 divided by 63
Dafna1 [17]

42  ÷ 63

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63x6=378


420-378=42

       63->420


So, how many times does 63 go into 42? Well, it doesn't. So put down a zero on your paper, and then a decimal. So if we add a zero onto 42, it becomes 420. Well, 420 is divisible by 63. In fact, 63 goes into 420 6 times, making a total of 378. 420-378 = 42. Then the process begins again. So you've got a 0.6, and that six just keeps on repeating. On paper, you're gonna wanna put a dash over the six to show that it's repeating.


Anyways, the answer is .66 repeating.

6 0
3 years ago
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Leona answered all the questions on a test. She had 90% of them correct. There were 40 questions in all. How many did she have c
KengaRu [80]

Answer:

The answer is 36

Step-by-step explanation:

Let the number be <em>x</em>

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x/40 x 100 = 90

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HOPE THIS HELPS

6 0
3 years ago
Which expression is equivalent to 3i(9i +15)?<br> - 45 +9i<br> -27 + 452<br> 27 +452<br> 2722 + 452
vaieri [72.5K]

Answer: B. -27+452i

Step-by-step explanation: Simplify the real and imaginary parts of the expression.

Hope this helps you out.

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3 years ago
Describe and sketch the suraface in R3 represented by the equation x+y=2.
Talja [164]

Answer:

The three-dimensional surface represented by the equation x+y=2 is an inclined plane, as seen in the image.

5 0
3 years ago
Plz help!plzzzzzzzzz
Alexxandr [17]

Answer:

Use quickmath.com

or

You can use photo math to get the answer

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2 years ago
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