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Gre4nikov [31]
3 years ago
11

Is 8:15 = 20:45 a proportion using cross product rule

Mathematics
1 answer:
Soloha48 [4]3 years ago
5 0
The equation is NOT proportional.
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Please give me the answer please
miv72 [106K]

Answer:360

Step-by-step explanation:

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Find the rule. Solve for n.
kakasveta [241]
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What is the solution for the following system of equations?<br><br>5x + 7y = 3<br><br>2x + 3y = 1
spayn [35]
<span>A) 5x + 7y = 3
B) 2x + 3y = 1

Multiplying Equation B by -2.5
</span><span>B) -5x -7.5y = -2.5 Then adding this to Equation A)
A) 5x + 7y = 3</span>

-.5y  = .5
y = -1

Since
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</span>
6 0
3 years ago
Which of the following is the reciprocal of: x2 - 2x - 8 A. (x + 2)(x - 4) B. 1 (x + 2) C. 1 (x + 2)(x - 4) D. 1 (x - 8)
ivanzaharov [21]
X^2 - 2x - 8 = <span>(x + 2)(x - 4)
</span>reciprocal of x^2 - 2x - 8 = 1 / [(x + 2)(x - 4)]
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answer is </span><span>C. 1 / [ (x + 2)(x - 4) ]</span>
8 0
3 years ago
take my points by writing HI and whatever you want in the answer are take the points i don't need them stay safe and indoors. :)
kherson [118]

Answer:HI

Step-by-step explanation:

Thx for the answers

7 0
3 years ago
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