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mote1985 [20]
3 years ago
8

Eight less than the product of two and a number x xx.

Mathematics
2 answers:
avanturin [10]3 years ago
6 0

2x -8 that’s how u write it in an expression

sergeinik [125]3 years ago
3 0

Answer:

Hi!

The correct answer is 2x - 8.

Step-by-step explanation:

To construct the expression is convenient to do it by parts.

<u>First</u>: Eight less than a number x is: x - 8.

For example if x = 10, eight less than 10 is 2. 10 - 8 = 2.

<u>Second</u>: The product of two and a number x is: 2x.

For example if x = 10, the product of two and 10 is 20. 2*10 = 20.

<u>Third</u>: Eight less than the product of two and a number x: 2x - 8

For example if x = 10, eight less than the product of two and 10. 2*10 - 8 = 12.

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When x 4, y = 1<br> х^2 + Зry — 7у^2<br><br><br> Can you explain the whole answer.
sineoko [7]
I couldn’t really understand the question but i did 4squared + 3r(1) - 7(1)squared and i got -33 + 3r
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3 years ago
A woman has a total of $9,000 to invest. She invests part of the money in an account that pays 7 % per year and
Volgvan

Answer:

Hi! I believe this is your answer:

$750

Step by step explanation:

interest + interest      = total interest

0.08*x   + 0.09*(9000-x) = 750    dollars

0.08x + 810 - 0.09x = 750

-0.01x = 750 - 810 = -60  ====>  x = %28-60%29%2F%28-0.01%29 = 6000.

Final answer:  

$6000 was invested at 8%.  The rest   9000-6000 = 3000 dollars were invested at 9%.

Check.   0.08*6000 + 0.09*3000 = 480 + 270 = 750 dollars.

6 0
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alina1380 [7]

Answer:

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Step-by-step explanation:

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Read 2 more answers
1. The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.
Nastasia [14]
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
5 0
3 years ago
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