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Ludmilka [50]
3 years ago
15

Please explain as well 4x+3y=24 6x+5y=346x+5y=34 x= y=

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0

Answer:

x = 9 y = -4

Step-by-step explanation:

4x + 3y = 24 . (-5) ------> -20x -15y = -120 (A)

6x + 5y = 34 . (3) -------> 18x + 15y = 102 (B)

(A) + (B) ----------> -2x = -18 ---------> x = 9

4.9 + 3y = 24

3y = 24 - 36

3y = -12

y = -4

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X³ + y³ + x³ = k<br>can anybody help solve this​
grin007 [14]

Answer:

The answer is k equals 2x to the third power and Y to the third power

3 0
3 years ago
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Factor completely 2x^3 + 10x^2 + 14x + 70(2x^2 + 14)(x + 5)(x^2 + 7)(2x + 10)2(x^3 + 5x^2 + 7x + 35)2[(x^2 + 7)(x + 5)]
givi [52]

ANSWER

2x^3+\text{ 10x}^2\text{ +14x + 70 = 2\lbrack\lparen x}^2\text{ + 7\rparen\lparen x + 5\rparen\rbrack}

EXPLANATION

Given polynomial function

2x^3\text{ + 10x}^2\text{ + 14x + 70}

To factor the given polynomial function, follow the steps below

Step 1: Divide the expression through by 2 in order to make sure that the coefficient of x^3 is 1

\begin{gathered} 2x^3\text{ + 10x}^2\text{ + 14x + 70} \\ \frac{2x^3}{2}\text{ + }\frac{10x^2}{2}+\text{ }\frac{14x}{2}\text{ + }\frac{70}{2} \\ x^3\text{ + 5x}^2\text{ + 7x + 35} \end{gathered}

Step 2: Factor the simplified expression in step 1

\begin{gathered} \text{ x}^3\text{ + 5x}^2\text{ + 7x + 35} \\ \text{ Factor}^\text{ x}^2\text{ out in the expression} \\ x^2(x\text{ + 5\rparen + 7\lparen x + 5\rparen} \\ \text{ \lparen x}^2\text{ + 7\rparen \lparen x + 5\rparen} \\ 2[(x^2\text{ +7\rparen\lparen x + 5\rparen\rbrack} \end{gathered}

Hence, the correct answer is option D

8 0
1 year ago
What is the difference of 3 - 2 and 2/3?
dolphi86 [110]
3-2= Here you are taking away 2 from 3
2/3= Here you are taking that two and breaking it down into 3 smaller groups of numbers----Example: If you have 2 apples and you are serving 3 people, you will cut the apple into slices and distribute the slices evenly into 3 little ziploc bags.

Hope this helps.
3 0
4 years ago
Pls help me 35 points in total
garik1379 [7]

Answer:

1. = station A

because 15 gallons = 0.75 discount at B but station A has a 1.50 discount at 15 gallons

Step-by-step explanation:

2. for satation B you have to read the graph

but for station A it is unclear on the graph

a way to work it out is that you know that 10= 1.00 so 12 = 1.2

( divide 12 by 10 )

station B = discount for 12 gallons = 0.6

but Station A = discount for 12 gallons = 1.2

the difference is

1.2 - 0.6 = 0.6 discount

3 0
3 years ago
The sum of two numbers is 20. The greater number is 4 more than the lesser number. What are the two numbers ?
ASHA 777 [7]
The two numbers would be 12 and 8 because 12 is 4 more than 8 and so the sum of 12 and 8 is 20.
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