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Alona [7]
3 years ago
7

Kumar bought some mangoes. The price of each mango () is found to be 6 more than the total number of mangoes bought by him and t

he total amount paid for all the mangoes is 280. Represent the situation mathematically and find the total number of mangoes bought by Kumar.​
Mathematics
1 answer:
spayn [35]3 years ago
8 0

Answer:

Price = 20, Amount = 14

Step-by-step explanation:

A = Amount of Mangoes

P = Price for 1 Mango

P = A + 6

280 = P * A

insert A+6 for P

280 = (A+6) * A

280 = 6A + A²

280=1*a^2+6*a  | Vertausche beide Seiten der Gleichung.

1*a^2+6*a=280  | quadratische Ergänzung: ergänze auf beiden Seiten (3)^2

1*a^2+6*a+(3)^2=3^2+280  | Rechne 3 hoch 2 aus.

1*a^2+6*a+(3)^2=9+280  | addiere 9 und 280

1*a^2+6*a+(3)^2=9+280  | Fasse die rechte Seite mit Hilfe der binomischen Formel zusammen.

1*(1*a+(3))^2=289  | Auf beiden Seiten Quadratwurzel ziehen.

1*a+(3)=+-*289^0.5  

1*a_1+(3)=289^0.5  

1*a_1+3=289^0.5  | Ziehe die Wurzel aus 289

1*a_1+3=17  | -3

1*a_1=14  

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
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  4. Multiplication
  5. Division
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Step-by-step explanation:

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

x + 5/9x = 2(3 - x)

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

  1. Distribute 2:                              x + 5/9x = 6 - 2x
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<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    27/16 + 5/9(27/16) = 2(3 - 27/16)
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  3. Subtract:                              27/16 + 15/16 = 2(21/16)
  4. Multiply:                               27/16 + 15/16 = 21/8
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We have:

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brainly.com/question/8011401

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