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pochemuha
3 years ago
6

Ayesha has a theory about 2 digit numbers that have a larger tens digit than ones digit she says that reversing the digits and s

ubtracting the reversed number from the original number will always generate a number that is a multiple of 9 is ayesha right? If so why do you think this works? If not,why not?
Mathematics
1 answer:
natta225 [31]3 years ago
5 0
10x+y-(10y+x)=10x+y-10y-x=9x-9y=9(x-y)

She's right.
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Which of the following points lies in the solution set of the inequality y > 3x +10?
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Since 3 is greater than -3, hence (-1, 3) lie in the solution set. Option C is correct

In order to determine the points that lie in the solution set of the inequality y > 3x +10, we will substitute the x-coordinate and see if <u>y is greater than the result.</u>

<u />

For the coordinate point (1, 10)

y > 3(1) +10

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Since 10 is not greater than 13, hence (1,10) does not lie in the solution set.

For the coordinate point (4, 20)

y > 3(4) +10

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Since 20 is not greater than 22, hence (4,20) does not lie in the solution set.

For the coordinate point (-1, 3)

y > 3(-1) +10

y > -7

Since 3 is greater than -3, hence (-1, 3) lie in the solution set.

Learn  more on inequality here: brainly.com/question/24372553

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2 years ago
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Equation for the given function
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Step-by-step explanation:

hello :

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1 )  this function no exist for if : x= -2 and 1

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12.5x+8=83
12.5x=83-8
12.5x=75
x=75/12.5
x=6
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3 years ago
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