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saveliy_v [14]
3 years ago
12

If the sum of two angles is 180°,then each is the___of the other​

Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0

Step-by-step explanation:

"If the sum of 2 angles is 180°, then each is the supplementary angle of the other".

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Francine Flicka found a bargain when she bought a lawn mower. She paid the store's clerk three $20 bills and received him $7.45
adoni [48]

Answer:

  $48.97

Step-by-step explanation:

Let p represent the marked price of the mower. Then the price with tax is ...

  with tax = p + 7.3%×p = 1.073p

The amount Flicka paid is the amount tendered less the change she received, so is ...

  3×$20 - 7.45 = with tax = 1.073p

To find p, we can divide by its coefficient:

  (3 × $20 - 7.45)/1.073 = p ≈ $48.97

The selling price before taxes was $48.97.

_____

<em>Comment on the problem</em>

If you check the answer, you find the amount with tax is ...

  $48.97 × 1.073 ≈ $52.54481 ≈ $52.54

so the change Flicka would have received would have been $7.46, not $7.45. If the price were $48.98, then the change would have been $7.44. There is no price at which the mower can be marked that will make the total with tax come to $52.55. There is no solution to this problem.

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3 years ago
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Solve the inequality 7(x - 2) &lt; -5.
madam [21]
The answer is x < 9/7
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Which ordered pair could replace the missing value and create a
Usimov [2.4K]

Answer:

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Step-by-step explanation:

The same x value cannot be used more than once or it isn't a function.

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I need help:/ with those two
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12 is B. You because the graphs slope is 1. 13 is A 7 I think.
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Choose the point-slope form of the equation of this line.​
igor_vitrenko [27]

Answer:

y= -5x +7

Step-by-step explanation:

We can see points on the graph:

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Based on the found values of m and b, the given line is:

  • y= -5x +7
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3 years ago
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