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Alexus [3.1K]
2 years ago
5

Solve the system of equations below. A. B. C. D.

Mathematics
1 answer:
timofeeve [1]2 years ago
7 0

Answer:

  A.  (-7 -2)

Step-by-step explanation:

You can eliminate y by multiplying the first equation by 7 and subtracting 6 times the second equation:

  7(-3x +6y) -6(5x +7y) = 7(9) -6(-49)

  -21x +42y -30x -42y = 63 +294 . . . . eliminate parentheses

  -51x = 357 . . . . . . . . collect terms

  x = -7 . . . . . . . divide by -51. This matches answer choice A.

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An architect is designing a house for the Frazier family. The Fraziers have asked that the cost of
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Answer:

║x - 175,000║≤ 20,000

Step-by-step explanation:

Let x be the amount the Fraziers are willing to pay. Since the house costs $175,000 and they are willing to deviate from this price no more than $20,000, so x =  $175,000 ± $20,000.

So, x - 175,000 = ± 20000

║x - 175,000║= 20,000

But we require  

║x - 175,000║≤ 20,000

which is our required open sentence.

8 0
3 years ago
Nasim is ordering a taxi from an online taxi service. The taxi charges $3 just for the
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Answer:

7

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5 0
3 years ago
What type of data would weather be measured in a month?
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Answer:

Weather data includes any facts or numbers about the state of the atmosphere, including temperature, wind speed, rain or snow, humidity, and pressure. These days, we have some amazing ways to collect this kind of data. We have high-tech equipment that can measure everything with amazing accuracy.

7 0
2 years ago
An automobile insurance company divides customers into three categories: good risks, medium risks, and poor risks. Assume that o
Leokris [45]

Answer:

0.60

Step-by-step explanation:

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Firstly, let’s calculate the probability of being a poor risk.

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6 0
3 years ago
Prism A is similar to Prism B. The volume of Prism A is 2720 cm³.
ZanzabumX [31]

Note that  the scale factor of B to A  is  (4 / 8)  =  1/2

So....the volume of B  =

Volume of A  *  (scale factor)^3  =

2720  *  (1/2)^3  =

2720 * 1/8  =

<span>340 cm^3</span>

<span>
</span>

<span>Hope this helps :)</span>

7 0
3 years ago
Read 2 more answers
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