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topjm [15]
3 years ago
5

If 25% of a number is 85 and 80% of the same number is 272, find 55% of that number.

Mathematics
2 answers:
Ugo [173]3 years ago
7 0

Answer:170

Step-by-step explanation:

If 25% is 85 then multiply 25% by 2 to get 50% and 85 by 2 to get 179

Juliette [100K]3 years ago
4 0

Answer:

187

Step-by-step explanation:

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In the world of right triangles why does a (squared) + b(squared) = c(squared)? thanks konrad streuli
BlackZzzverrR [31]

Answer:

Pythagoras Theorem

Step-by-step explanation:

Like you rightly stated, in a right angled triangle. The phenomenon you mentioned is what us called Pythagoras theorem which proved to us that the square of the length of the hypotenuse of a right angled triangle, is equal to the square of the length of the opposite side to the angle in question, and also to the square of the length of the side adjacent to the same angle in question.

Essentially,

a² + b² = c², where c is the hypotenuse and a & b is the length of the two other sides

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3 years ago
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Mila [183]
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3 years ago
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What is the area of a rectangle with a length of 21 feet and a width of 15 feet?
jenyasd209 [6]

Answer:

315

Step-by-step explanation:

6 0
3 years ago
Order these from greatest to least <br> 7 7/8, 7.5, 7.8, 7 3/4
Marizza181 [45]

<em><u>The numbers are ordered from greatest to least is:</u></em>

7\frac{7}{8} >7.8 > 7\frac{3}{4} > 7.5

<em><u>Solution:</u></em>

<em><u>Given numbers are:</u></em>

7\frac{7}{8} , 7.5, 7.8, 7\frac{3}{4}

We have to order them from greatest to least

Let us first convert the mixed fractions number to decimals

Mixed fractions to fractions:

Multiply the whole number part by the fraction's denominator.

Add that to the numerator.

Then write the result on top of the denominator.

Therefore,

7\frac{7}{8} = \frac{8 \times 7 + 7}{8} = \frac{63}{8} = 7.875

Similarly,

7\frac{3}{4} = \frac{4 \times 7 + 3}{4} = \frac{31}{4} = 7.75

<em><u>Now the given numbers are:</u></em>

7.875, 7.5, 7.8, 7.75

<em><u>Arrange them from greatest to smallest</u></em>

7.875 > 7.8 > 7.75 > 7.5

<em><u>Thus the order is:</u></em>

7\frac{7}{8} > 7.8 > 7\frac{3}{4} > 7.5

Thus the numbers are ordered from greatest to least

5 0
3 years ago
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