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sweet [91]
2 years ago
10

The numerator and the denominator of a fraction are thirteen and fifty, respectively. When a certain number is added to this num

erator and subtracted from this denominator, the resulting fraction has a numerator to denominator ratio of two to one. What is the number?
Mathematics
2 answers:
Talja [164]2 years ago
7 0
(13 + x)/(50 - x ) = (2/1)
Cross Multiply
2(50-x) = 1(13 + x)
100 - 2x = 13 + x
add 2x to both sides
100 -2x + 2x = 13 + x + 2x
100 = 13 + 3x
Subtract 13 from both sides
100 - 13 = 13 - 13 + 3x
87 = 3x
divide both sides by 3
29 = x

(13 + 29)/(50-29) = 42/21 = 2 to 1 ratio
ASHA 777 [7]2 years ago
6 0

The correct answer is 29.

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slamgirl [31]

The equation for the problem is 0.25x ≤ 3.65

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19, 38, 76, ... find the 8th term
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2 years ago
a local parts shop buys a machine that costs $500,000. its value depreciates exponentially each year by 10%. what is the machine
jeka94
Hello!

Answer:

$295.295

Explanation:

Of the statement, we have that the price of the machine decreased 10% every year exponentially, so in the first year it real value drops to 90% of the costs. For 5 years, It can be expressed and simplified by the following equation:

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8 0
2 years ago
the size of the second application is 3.45 MB less than he first application. What is the size of the second application
mr_godi [17]

The size of the second application given the size of the first application and the expression ( x - 3.45 mb) for the size of the second application is 293.55 MB.

<h3>Equation</h3>

Let

  • Size of the first application = x

  • Size of the second application= x - 3.45 mb

For instance,

if the size of the first application is 297 MB

Size of the second application= x - 3.45 mb

= 297 MB - 3.45 MB

= 293.55 MB

Therefore, the size of the second application given the size of the first application and the expression for the size of the second application is 293.55 MB

Learn more about equation:

brainly.com/question/2972832

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6 0
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A flower pot weighing 3 newtons is sitting on a windowsill 10 meters from the ground what is its potential energy
krek1111 [17]

Answer:

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Potential Energy = mgh = 3*10 = 30 J

5 0
3 years ago
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