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Ksenya-84 [330]
3 years ago
12

How do i solve 4x-5y=-19 and 3x-7y=18?

Mathematics
1 answer:
kakasveta [241]3 years ago
7 0
4x-5y=-19= 0
3x-7y=18=0
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Find the selling price of a $270 bike with a 24% markup
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Try $64.80 + the $270
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3 years ago
What do you multiply to get 201.25 and add to get 58
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9514 1404 393

Answer:

  • 29 +√639.75
  • 29 -√639.75

Step-by-step explanation:

If we let x represent one of the numbers, then you want ...

  x(58 -x) = 201.25

  x² -58x +201.25 = 0 . . . . . put in standard form

  (x² -58x +29²) +201.25 -29² = 0 . . . . complete the square

  (x -29)² -639.75 = 0

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The two numbers of interest are ...

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2 years ago
Christina says the graph for the inequality r < -5 will be the same as the graph for the inequality -5 > r. Do you agree o
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Answer:

Agree

Step-by-step explanation:

Just copy and paste (without quotations): "I agree because r < -5 is just a flipped inequality of -5 > r. In other words, 'r is less than -5' is the same as '-5 is greater than r'."

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3 years ago
The average temperature in Antarctica is -70.6°F. The average temperature at the equator is 86°F. What is the distance between t
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I’m pretty sure is The answer b
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Read 2 more answers
Why the output is a zero number ?<br><img src="https://tex.z-dn.net/?f=%28x%20-%203%29%20%5Ctimes%20%28x%20%20%20%2B%204%29%20%3
ELEN [110]

Answer:

see explanation

Step-by-step explanation:

Given

(x - 3) × (x + 4) = 0, that is

(x - 3)(x + 4) = 0

The zero product indicates that (x - 3) = 0 or (x + 4) = 0

x - 3 = 0 ⇒ x = 3

x + 4 = 0 ⇒ x = - 4

Thus if x = 3, then

(3 - 3)(x + 4) = 0 × (x + 4) = 0

Similarly if x = - 4 the output is zero

4 0
3 years ago
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