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erma4kov [3.2K]
3 years ago
12

Do you think there are any ordered pairs that are solutions to BOTH y = x + 5 and y = –2x – 1? Explain.

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

The ordered pair is (-2,3)

Step-by-step explanation:

y=x+5\\y=-2x-1\\\implies x+5=-2x-1\\\implies 3x=-6\\\boxed{x=-2}\\\implies y=-2+5=\boxed {3}\\

makkiz [27]3 years ago
3 0

Answer:

(-2,3)

Step-by-step explanation:

Set the two equations equal to each other since they both equal y

x + 5 = -2x - 1

+2x      +2x          Add 2x to both sides

3x + 5 = -1

     - 5   - 5          Subtract 5 from both sides

3x = -6                 Divide both sides by 3

x = -2

Plug this into one of the original equations

y = x + 5

y = -2 + 5              Add

y = 3

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Answer:

26 is the perimeter

Step-by-step explanation:

you add all of the side numbers just like this:

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3 0
3 years ago
ABC ≃DEF. Find the lengths of the given sides
GuDViN [60]

Answer:

BC = 8 and EF = 8.

Step-by-step explanation:

Since triangle ABC and DEF are congruent to each other, BC corresponds with EF (as determined by the triangle names).

Set BC and EF equal to each other.

x + 6 = 3x + 2

Subtract x from both sides.

6 = 2x + 2

Subtract 2 from both sides.

4 = 2x.

Divide 2 on both sides.

x = 2.

Substitute 2 for x.

BC = 2 + 6

BC = 8

Since we already know that EF is congruent to BC, EF is also 8.

EC = 3(2) + 2

EC = 6 + 2

EC = 8

5 0
2 years ago
Solve: six times a number plus 4 is the same as the number minus 11
SSSSS [86.1K]
Writing this word problem symbolically:  6x + 4 = x = 11.

Combining like terms, 5x = 7, and so x = 7/5 (answer)
6 0
3 years ago
Explain how to use a horizontal number line<br> to order four fractions from least to greatest.
horsena [70]

Answer:

To order fractions from least to greatest, start by finding the lowest common denominator for all of the fractions. Next, convert each of the fractions by dividing the lowest common denominator by the denominator and then multiplying the top and bottom of the fraction by your answer.

Step-by-step explanation:

Solution for the above problem: We first find the least common denominator by finding the least common multiple for 4, 3, 2, 6, and 8. We find the LCM by the prime factorization method. Next, place the fractions in order from least to greatest.

4 0
3 years ago
Is 33, 56, and 66 and right triangle
GenaCL600 [577]

Answer:

No

Step-by-step explanation:

If you mean they are the sides lengths,

33^2+ 56^2 != 66^2

3136 != 4356

7 0
3 years ago
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