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3 years ago

Match the property name with the appropriate equation. Use each once.

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

4 0

Answer:

19. Opposite of a Difference ↔ E. -(8 - 3·m) = 3·m - 8

20. Opposite of a sum ↔ A. -[(-r) + 2p] = -(-r) - 2p

21. Opposite of an Opposite ↔ F. -1[ -1(9 - 2w)] = 9 - 2w

22. Multiplication by 0 ↔ B. 160 - (3d + 2)(0) = 160 - 0

23. Multiplication by ↔ D. -1 -(4r + 3s) + t = (-1)(4r + 3s) + t

21. Distributive property ↔ C. 5(2 - x) = 10 - 5x

Step-by-step explanation:

19. Opposite of a difference is the difference of the opposites

20. Opposite of a sum is the sum if the opposites

21. Opposite of an opposite is the original number

22. Multiplication by 0- The result of multiplication by 0 is 0

23. Multiplication by -1 results in the change in sign of a number

24. Distributive property - Multiplying the sum or difference of two numbers by a number, will have the same result as multiplying each each of the addends by the number individually and adding the product together.

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Standard form 6000000+80000+10

SIZIF [17.4K]

6,080,010 hope this helps you

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4 years ago

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Find the domain of the following set:<br> {(-5,-5), (-3, 4), (0, 1), (2,5)}

umka21 [38]

Answer:

Hi! The answer to your question is {-5,-3,0,2}

Step-by-step explanation:

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3 years ago

A baseball team is hosting a dance as a fundraiser. the cost of 1 individual ticket is $7. the cost of 1 group ticket is $16. th

QveST [7]

<h2>Word Problem</h2>

To form equations from word problems, we can do the following:

Identify variables
Find key information
Identify word equations and translate into numerical equations
Solve

<h2>Solving the Question</h2>

We're given:

Let <em>x</em> be the number of individual tickets that were sold
Let <em>y</em> be the number of group tickets sold
Cost of 1x = 7 dollars
Cost of 1y = 16 dollars
Baseball team: 36 more x than y
⇒ x = 36 + y
Fundraiser raised 574 dollars in total
⇒ 7x + 16y = 574 dollars

Question: How many individual tickets were sold? (What is the value of <em>x</em>?)

Here are all the equations we have created:

x = 36 + y
7x + 16y = 574

We can solve for the value of <em>x</em> using systems of equations.

First, isolate <em>y</em> in the first equation:

$x = 36 + y\\y=x-36$

Now, plug this into the second equation:

$7x + 16y = 574\\7x + 16(x-36)= 574\\7x+ 16x-586= 574\\23x=1150\\\\x=\dfrac{1150}{23}\\\\x=50$

Therefore, <em>x</em> is equal to 50.

<h2>Answer</h2>

50 individual tickets were sold.

7 0

3 years ago

Please help me i really need help please

agasfer [191]

Answer:

90+42+x = 180

132+x=180

x=180-132

x=48

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3 years ago

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Estimate the sum 7 8/9 + 3.1

Yanka [14]

Answer:

$\large\boxed{7\dfrac{8}{9}+3.1=10\dfrac{89}{90}}$

Step-by-step explanation:

$\text{Convert the decimal to the fraction:}\\\\3.1=\dfrac{31}{10}=3\dfrac{1}{10}\\\\7\dfrac{8}{9}+3.1=7\dfrac{8}{9}+3\dfrac{1}{10}\\\\\text{The common denominator is 90.}\\90=9\cdot10\\\\7\dfrac{8}{9}=7\dfrac{8\cdot10}{9\cdot10}=7\dfrac{80}{90}\\\\3\dfrac{1}{10}=3\dfrac{1\cdot9}{10\cdot9}=3\dfrac{9}{90}\\\\\\7\dfrac{8}{9}+3.1=7\dfrac{80}{90}+3\dfrac{9}{90}=(7+3)+\dfrac{80+9}{90}=10\dfrac{89}{90}$

3 0

3 years ago