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Dahasolnce [82]
3 years ago
7

What is the result of subtracting the second equation from the first?

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
7 0
Sorry for my handwriting

Mrac [35]3 years ago
4 0

Answer: - 5x = 8

Step-by-step explanation:

Subtracting equation 2 from 1 implies

- 2x - 3x + 7y - 7y = 10 - 2

- 5x = 8

If solving for x , then

x = -8/5

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How to solve an algebraic expression by putting values of unknown
andrey2020 [161]

Answer:

Step-by-step explanation:

Algebraic expressions tend to have atleast one unknown variable in it. In order to solve the expression we need to assign a fixed value to that variable or isolate it if the expression is equal to another value. For example, in the following expression we have the variable x, if we give it a value of 5 we simply solve like a regular expression...

5x + 3

5(5) + 3

25 + 3

28

Therefore, if we swap the variable x for the value of 5 we would get a value of 28 in this algebraic expression.

7 0
2 years ago
The dot plot above identifies the number of pets living with each of 20 families in an apartment building. What fraction of the
ludmilkaskok [199]

Step-by-step explanation:

refer the above attachment

5 0
2 years ago
Given: l || m; ∠1 ∠3
Katarina [22]

The parts that are missing in the proof are:

It is given

∠2 ≅ ∠3

converse alternate exterior angles theorem

<h3>What is the Converse of Alternate Exterior Angles Theorem?</h3>

The theorem states that, if two exterior alternate angles are congruent, then the lines cut by the transversal are parallel.

∠1 ≅ ∠3 and l║m because we are: given

By the transitive property,

∠2 and ∠3 are alternate interior angles, therefore, they are congruent to each other by the alternate interior angles theorem.

Based on the converse alternate exterior angles theorem, lines p and q are proven to be parallel.

Therefore, the missing parts pf the paragraph proof are:

  • It is given
  • ∠2 ≅ ∠3
  • converse alternate exterior angles theorem

Learn more about the converse alternate exterior angles theorem on:

brainly.com/question/17883766

#SPJ1

3 0
2 years ago
There are infinitely How many pairs of numbers of which the sum of their cube roots is zero give two of these pairs
ivanzaharov [21]

Answer:

Infinite pairs of numbers

1 and -1

8 and -8

Step-by-step explanation:

Let x³ and y³ be any two real numbers. If the sum of their cube roots is zero, then the following must be true:

\sqrt[3]{x^3}+ \sqrt[3]{y^3}=0\\ \sqrt[3]{x^3}=- \sqrt[3]{y^3}\\x=-y

Therefore, any pair of numbers with same absolute value but different signs fit the description, which means that there are infinite pairs of possible numbers.

Examples: 1 and -1; 8 and -8; 27 and -27.

8 0
3 years ago
Hardy was given the scale drawing of the enlargement to Analyze Hardy's work to determine if he is correct. If he
irakobra [83]

Answer:

the correct answer is  NO. hardy should have multiplied by the scale factor to find the missing length.

Step-by-step explanation:

dont got one hehehe

8 0
3 years ago
Read 2 more answers
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