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2 years ago

X^2-16/x^2-3x-4 simply

Mathematics

2 answers:

kolbaska11 [484]2 years ago

7 0

Answer:

x+4/x+1

Step-by-step explanation:

hope this can help you :)

Makovka662 [10]2 years ago

4 0

Answer:

$\frac{x+4}{x+1}$

Step-by-step explanation:

Given

$\frac{x^2-16}{x^2-3x-4}$ ← factor numerator/ denominator

= $\frac{(x-4)(x+4)}{(x-4)(x+1)}$ ← cancel the factor (x - 4) on numerator/ denominator

= $\frac{x+4}{x+1}$

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PilotLPTM [1.2K]

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3 years ago

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(2x/3)-(5x/9)-(x/6)-(5x/12)=13/2 this equation is equivalent to:

agasfer [191]

Answer:

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Step-by-step explanation:

Given that:

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2 years ago

Solve for x.........

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Answer:

x = 12

Step-by-step explanation:

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8 0

2 years ago

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Help me please: answer as an improper fraction

rewona [7]

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12) $\frac{1}{50}$
13) $\frac{20}{21}$
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3 years ago

Sally is $3.95 in dimes and quarters that shows the total 23 coins how many times does she have and how many quarters does she h

UkoKoshka [18]

Make a system of equations:

0.10x + 0.25y = 3.95
x + y = 23

x + y = 23

Subtract 'y' to both sides:

x = -y + 23

Plug in -y + 23 for 'x' in the first equation:

0.10(-y + 23) + 0.25y = 3.95

Distribute 0.10:

-0.10y + 2.3 + 0.25y = 3.95

Subtract 2.3 to both sides:

-0.10y + 0.25y = 1.65

Combine like terms:

0.15y = 1.65

Divide 0.15 to both sides:

y = 11

Plug this into any of the two equations to find 'x':

x + y = 23

x + 11 = 23

Subtract 11 to both sides:

x = 12

So Sally has 11 dimes and 12 quarters.

6 0

3 years ago