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MAXImum [283]
3 years ago
11

What whole number does 15 4/10 round to

Mathematics
1 answer:
vlada-n [284]3 years ago
6 0
15 4/10....so u know it is either gonna round to 15 or 16. It all depends on ur fraction. If 4/10 is larger or equal to 1/2, ur number rounds to 16....but if 4/10 is less then 1/2, ur answer stays 15.

4/10 reduces to 2/5.....little clue...**.if the numerator is less then half of the denominator, then ur fraction is less then 1/2. But if ur numerator is more then half of the denominator, then ur fraction is more then 1/2.

so ur numerator is 2 and ur denominator is 5.......2 is less then half of 5 because half of 5 is 2.5.....therefore, 2/5 is less then 1/2.

so that means 15 4/10 rounded to the nearest whole number is 15.
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Scorpion4ik [409]

Answer:

(5.4k+7.9m+8.1n) centimeters

Step-by-step explanation:

Given the side length of a triangle;

S1 = (1.3k+3.5m) cm

S2 = (4.1k-1.6n) cm

S3 = (9.7n+4.4m) cm

Perimeter of the triangle = S1+S2 + S3

Perimeter of the triangle = (1.3k+3.5m) + (4.1k-1.6n) + (9.7n+4.4m)

Collect the like terms;

Perimeter of the triangle = 1.3k+4.1k+3.5m+4.4m-1.6n+9.7n

Perimeter of the triangle = 5.4k+7.9m+8.1n

Hence the expression that represents the perimeter of the triangle is (5.4k+7.9m+8.1n) centimeters

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