2 years ago

Explain how subtracting 4/5 - 3/5 involves subtracting 4 and 3

Mathematics

1 answer:

Vesnalui [34]2 years ago

3 0

Answer:

Explain how subtracting 4/5 - 3/5 involves subtracting 4 and 3

Step-by-step explanation:

Trains A and B, 200 km apart on the same straight track, travel at speeds of 50 km/hr and 65 km/hr respectively. At the end of 1 hour, the distance between the trains could not be

A. 85 km

B. 115 km

C. 185 km

D. 215 km

Apparently, the answer is B.) 115 km, but I need a solution.

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The factorization of x2 + 3x – 4 is modeled with algebra

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Option C: (x+4) and (x-1) are the factors of the equation

Explanation:

Given that the equation is $x^{2} +3x-4$

We need to determine the factors of the equation.

Splitting the middle term, we get,

$x^{2} +4x-x-4$

Grouping the terms, we have,

$x(x+4)-1(x+4)$

Let us factor out the term (x+4), we have,

$(x+4)(x-1)$

Thus, the factors of the equation are (x+4) and (x-1)

Hence, Option C is the correct answer.

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Step-by-step explanation:

96:36

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