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son4ous [18]
3 years ago
12

Find the number that when added to the numerator and subtracted from the denominator of 3/11 results in a fraction equivalent to

5/2
Plz help thank you!!
Mathematics
2 answers:
Snezhnost [94]3 years ago
8 0

Answer:

7

Step-by-step explanation:

Suppose the "number" is x.

The problem says that when x is added to the numerator of 3/11 (in other words, added to 3) and subtracted from the denominator of 3/11 (in other words, subtracted from 11), the answer is 5/2. So:

(3 + x)/(11 - x) = 5/2

Cross-multiplying, we have:

2 * (3 + x) = 5 * (11 - x)

6 + 2x = 55 - 5x

7x = 55 - 6 = 49

x = 49/7 = 7

Thus, the answer is 7.

Hope this helps!

adell [148]3 years ago
6 0

Answer:

7

Step-by-step explanation:

Let that no. be b

(3+n)/(11-n) = 5/2

2(3+n) = 5(11-n)

6 + 2n = 55 - 5n

7n = 49

n = 7

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Read 2 more answers
HELP ASAP WITH ASSIGNMENT
PSYCHO15rus [73]
X = 5
The length of an inscribed angle is 1/2 the arc it intercepts so the angle on the bottom twice equals the measure of the arc above.
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