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aleksley [76]
3 years ago
9

Pls help yall...im stuck on it

Mathematics
2 answers:
alekssr [168]3 years ago
8 0

Answer:

x = \frac{7}{12}

Step-by-step explanation:

Given

\frac{x}{\frac{7}{8} } = \frac{2}{3} ( cross- multiply )

3x = 2 × \frac{7}{8} = \frac{7}{4} ( divide both sides by 3 )

x = \frac{7}{12}

sergey [27]3 years ago
3 0

Answer: The number that goes in the green box is 7

Step-by-step explanation: The LHS of the equation can also be expressed as,

x/ (7/8) OR

x times (8/7)

That is, 8x/7

In other words, the equation now becomes;

8x/7 = 2/3

By cross multiplication we now have

8x(3) = 7(2)

24x = 14

Divide both sides of the equation by 24

x = 14/24

(Simplified further)

x = 7/12

Therefore the number that goes in the green box is 7.

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Express as a trinomial (2x+8)(x-3)
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Answer:

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\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(2x+8)(x-3)=(2x)(x)+(2x)(-3)+(8)(x)+(8)(-3)\\\\=2x^2-6x+8x-24\qquad\text{combine like terms}\\\\=2x^2+(-6x+8x)-24\\\\=2x^2+2x-24

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Solve this system of linear equations. -14x + 11y = 23 7x - 3y = 37 <br> x=? y=?
lesya692 [45]
<span> -14x + 11y = 23
+2(7x - 3y = 37)
----------------------
   0 + 5y = 97
y  = 97/5
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Check

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</span>
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