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Damm [24]
3 years ago
15

5x+y=9 10x-7y=-8 I need help!

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

(11/9, 26/9)

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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

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

5x + y = 9

10x - 7y = -8

<u>Step 2: Rewrite Systems</u>

Manipulating: Equation 5x + y = 9

  1. Subtract 5x on both sides:                    y = 9 - 5x

<u>Step 3: Redefine Systems</u>

y = 9 - 5x

10x - 7y = -8

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>x</em>:                    10x - 7(9 - 5x) = -8
  2. Distribute -7:                        10x - 63 + 35x = -8
  3. Combine like terms:           45x - 63 = -8
  4. Add 63 on both sides:        45x = 55
  5. Divide 45 on both sides:    x = 11/9

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    5x + y = 9
  2. Substitute in <em>x</em>:                       5(11/9) + y = 9
  3. Multiply:                                  55/9 + y = 9
  4. Isolate <em>y</em>:                                 y = 26/9
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Step-by-step explanation:

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There are 1,295 students attending a small university.There are 714 women enrolled. What percent of the students are women. Equa
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Step-by-step explanation:

पति ऑफिस से घर आया... और खाना खाने बैठा

खाते-खाते उसने अपनी पत्नी से कहा कि

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और कहा..

"इन्हे टेस्ट नहीं आ रहा है.."

एम्बुलेंस पति को ले गयी और उसे क्वॉरंटाइन कर दिया

अस्पताल में पत्नी ने पति को फोन किया और पूछा: अब आया स्वाद??

यहाँ तक की कहानी सबने सुनी होगी। अब देखिये कहानी में नया मोड़:

⬇️

.

.

.

.

.

.

.

.

उधर पति को पूछा गया कि

"आपके संपर्क में कौन-कौन आया था ?"

पति ने बड़ी ही शांति से कहा..

- मेरी पत्नी

- मेरा ससुर

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बस अब ये सब भी अस्पताल के बिस्तर पर बैठे-बैठे पति को घूर रहे हैं!

Moral of the story is

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5 0
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nordsb [41]

Answer:

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Step-by-step explanation:

Allow me to revise your question for a better understanding and I hope it will fit the original one.  

The parallelogram shown below has an area of 72 units squared. The base is 6 and the other side is 13 Find the missing height.

Here is my answer:

Given:

The area: 72 units squared.

The base: 6 units

As we know that the area of the parallelogram is represented by below formula:

A = b*h where h is the height and b is the base

In this situation, we know:

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So the missing height is 12 units

Step-by-step explanation:

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