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Lubov Fominskaja [6]
3 years ago
13

You need to buy some chicken for dinner tonight. You found an ad showing that the store across town has it on sale for $2.79 a p

ound, which is cheaper than your usual neighborhood store, which sells it for $3.19 a pound. Is it worth the extra drive?
Mathematics
1 answer:
SOVA2 [1]3 years ago
5 0
No, you have to think about gas, if it’s a across from town your gas will run out and it will cost about 20 dollars plus that 2.79.
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Rewrite the equation 4x + 4y = 20 in slope-intercept form.
iragen [17]
<span> 4x + 4y = 20
If I'm not mistakened, this is in it's standard form. 
Slope intercept form </span>→ y = mx + b

Let's transform this into that form. 
4x + 4y = 20
4y = -4x = 20
y = -x + 5 

The slope intercept form would be ⇒ <span>y = -1x + 5 </span>
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3 years ago
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2 years ago
Find all solutions to
BARSIC [14]

Answer:

x= 0 , \frac{1}{14} , \frac{-1}{12}

Step-by-step explanation:

Given, equation is \sqrt[3]{15x-1} + \sqrt[3]{13x+1} = 4\sqrt[3]{x}. →→→ (1)

Now, by cubing the equation on both sides, we get

( \sqrt[3]{15x-1} + \sqrt[3]{13x+1} )³ = (4\sqrt[3]{x})³

⇒ (15x-1) + (13x+1) + 3×\sqrt[3]{15x-1}×\sqrt[3]{13x+1} (\sqrt[3]{15x-1} + \sqrt[3]{13x+1}) = 64 x.

⇒ 28x + 3×\sqrt[3]{15x-1}×\sqrt[3]{13x+1} (4\sqrt[3]{x}) = 64x.        

(since from (1),  \sqrt[3]{15x-1} + \sqrt[3]{13x+1} = 4\sqrt[3]{x})

⇒ 12× \sqrt[3]{15x-1}×\sqrt[3]{13x+1} (\sqrt[3]{x})= 36x.

⇒ 3x = \sqrt[3]{(15x-1)(13+1)(x)}.

Now, once again cubing on both sides, we get

(3x)³ = (\sqrt[3]{(15x-1)(13+1)(x)})³.

⇒ 27x³ = (15x-1)(13x+1)(x).

⇒ 27x³ = 195x³ + 2x² - x

⇒ 168x³ + 2x² - x = 0

⇒ x(168x² + 2x -1) = 0

⇒ by, solving the equation we get ,

x = 0 ; x = \frac{1}{14} ; x = \frac{-1}{12}

therefore, solution is x= 0 , \frac{1}{14} , \frac{-1}{12}

7 0
3 years ago
A secret code consists of 3 digits, followed by 2 letters, followed by 1 of the following symbols: @
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The answer is B hope this helps
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3 years ago
Which of the following numbers is NOT a solution of
kumpel [21]

Answer:

15

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6x+11 > 7x-2

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13>x

15 is more than 13 which does not satisfy the inequality.

X has to be less than 13 and cannot even equal 13 as that is not the sign

5 0
2 years ago
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