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pashok25 [27]
2 years ago
14

An airline ticket costs $40.

Mathematics
1 answer:
OleMash [197]2 years ago
5 0
So 200% is double of 100% which is $40 so that means that it is $80
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What is the sum? StartFraction 3 Over x squared minus 9 EndFraction StartFraction 5 Over x 3 EndFraction.
V125BC [204]

The sum of the two fractional number, which consist in the variable <em>x</em> is in the polynomial function,

f(x)=\dfrac{5x-12}{(x+3)(x-3)}

<h3>What is the sum of fraction number?</h3>

Fraction number is the number which is a part of a whole number. It is written with a numerator and denominator.

Fraction number are written as,

\dfrac{a}{b}

Here (a) is the numerator and (b) is the denominator.

To find the sum of two fraction numbers, cross multiply both the numbers or find the least common factor as denominator.

The first fraction number given in the problem is,

\dfrac{3}{x^2+9}

The second fraction number given in the problem is,

\dfrac{5}{x+3}

Let the sum of these number is f(x). Thus,

f(x)=\dfrac{3}{x^2-9}+\dfrac{5}{x+3}\\f(x)=\dfrac{3}{(x+3)(x-3)}+\dfrac{5}{x+3}\\

Solve it further as,

f(x)=\dfrac{3+5(x-3)}{(x+3)(x-3)}\\f(x)=\dfrac{3+5x-15}{(x+3)(x-3)}\\f(x)=\dfrac{5x-12}{(x+3)(x-3)}

Thus, the sum of the two fractional number is,

f(x)=\dfrac{5x-12}{(x+3)(x-3)}

Learn more about the fraction number here:

brainly.com/question/78672

6 0
2 years ago
Match the pairs of polynomials to their products.
Anna35 [415]
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(xy+3x+2) ( xy-9) =  x^2 y^2 +3x^2 y -7xy-27x-18
4 0
3 years ago
Read 2 more answers
7 1/2 / (4 1/2- 5 1/8)
anastassius [24]

Answer:

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Step-by-step explanation:

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A Home is purchased For $420,000 with a 6% down payment find the monthly payment if the mortgage is 7.5% for 30 years
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Answer:

22.50

Step-by-step explanation:

0.75 x 30 years of mortgage

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