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swat32
4 years ago
13

Solve the system of equations:

Mathematics
1 answer:
PolarNik [594]4 years ago
4 0

Answer:

D.(-1,-5) and (5,7)

Step-by-step explanation:

I used a graphing tool to graph the two equations together. When graphed, the equations intercept (5,7) and (-1,-5). Therefore, they are the solutions to the system.

Option D should be the correct answer.

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How can you tell if an equal share is more than one whole ?
nikdorinn [45]
You can tell that the equal share is more than 1 whole when the  numerator is greater than the denominator.How? As we all know that in order to convert a fraction to a decimal number, we need to divide the numerator by the denominator.Now, if the numerator is less than the denominator, expect that the digit is now less than 1 whole. But if the numerator is greater than the denominator, for sure, it is more than 1 whole for example.=> 5/4 , where 5 is the numerator and 4 is the denominator<span>=> 1 and 1/4 or 1.25</span>
3 0
3 years ago
Solve the system by substitution. <br>y = -7x + 6 <br>y = -10x​
Artist 52 [7]

Answer:

(-2, 20)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = -7x + 6

y = -10x

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                   -10x = -7x + 6
  2. Add 10x to both sides:      0 = 3x + 6
  3. Isolate <em>x</em> term:                    -6 = 3x
  4. Isolate <em>x</em>:                             -2 = x
  5. Rewrite:                              x = -2

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                    y = -10x
  2. Substitute in <em>x</em>:                       y = -10(-2)
  3. Multiply:                                  y = 20
5 0
3 years ago
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Katen [24]
The given answer would be five
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3 years ago
Need help please........
Leni [432]
What are the numbers?
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3 years ago
Josh bought 3 bags of potting soil and 10 bags of mulch from Home Depot.
s2008m [1.1K]

Answer:

3x+10y=C

x=cost of potting soil

y=cost of mulch

C=total cost

8 0
3 years ago
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