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ikadub [295]
3 years ago
8

A first number plus twice a second number is 1. Twice the first number plus the second totals 23. Find the numbers.

Mathematics
1 answer:
TEA [102]3 years ago
7 0
X=15
Y= -7
Remember to form simultaneous equations with the information given

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Which of the following statement is incorrect? .
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Answer:

b.Commutative property is true for subtraction of Rational numbers

Step-by-step explanation:

  • Option B is the correct answer as it is the incorrect statment in the given options.

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1) Which linear equation BEST represents the line of best fit for the scatterplot? A) y = x B) y = 3x C) y = -3x D) y = 5x + 1 2
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Makovka662 [10]
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5 0
3 years ago
Worth 12 points and please actually help me
Dmitrij [34]

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6 0
3 years ago
Read 2 more answers
Eighty-five more than the square of a number is the same as the square of the quantity that is $17$ less than the number. What i
Usimov [2.4K]
To solve that we first need to write it as an equation where x is the number:
85 + x^2 = (x-17)^2
85 + x^2 = x^2 - 34x + 289
Now organize the equation by gathering like terms in the same side lf the equation:
You can shift 85 to the other side by subtracting 85 from both sides of the equation:

85 - 85 + x^2 =x^2 34x +289 - 85
x^2 =x^2 + 34x +204

And shift x^2 to the other side by subtracting x^2 from both sides:
x^2 - x^2 =x^2 -x^2 + 34x +204
0 = 34x + 204

Shift 34x to the other side by subtracting 34x from sides
-34x = 34x - 34x + 204
-34x = 204

And now isolate x by dividing both sides of the equation by -34
-34/-34x = 204/-34
x = -6
Thats your awnser , the number is -6
I hope you understood my brief explanation...
5 0
3 years ago
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