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Lana71 [14]
3 years ago
6

18 2/5 - n = -10 1/3

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0

Answer:

The answer is n=28\frac{11}{15}.

Step-by-step explanation:

Given:

18 2/5 - n = -10 1/3.

Now, to solve the equation:

18\frac{2}{5} - n = -10 \frac{1}{3}

Converting the mixed fractions to improper:

⇒\frac{92}{5} -n=-\frac{31}{3}

Moving the numbers on one side and variable to the other:

⇒\frac{92}{5} +\frac{31}{3}=n

Now, solving the factions:

⇒\frac{92\times 3+31\times 5}{15}=n

⇒\frac{276+155}{15}=n

⇒\frac{431}{15}=n

⇒28\frac{11}{15}=n

Therefore, the answer is n=28\frac{11}{15}.

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riadik2000 [5.3K]

Answer:

to find the sale price, you need to find what 34% of 82 is.

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Step-by-step explanation:

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2 years ago
What is the value of x in the proportion (x - 1)/5 = (4x + 2)/35?
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

C

Step-by-step explanation:

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now, we know the baseline of the 4 triangles, but what is their height (at least we know, all 4 have the same height, as the pyramid is totally regular) ?

the height of the side triangles is the slant height of the pyramid (the distance from the middle of a sideline to the top of the pyramid).

we get this by imagining a right-angled triangle inside the pyramid :

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we can use Pythagoras

c² = a² + b²

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slant height² = 7² + (8/2)² = 49 + 4² = 49 + 16 = 65

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all 4 side triangles = 4×32.24903099... =

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64 + 128.996124... = 192.996124... in² ≈ 193.00 in²

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