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Art [367]
3 years ago
8

What percent of village woman took between 56 and 64 minutes to collect one container of water ?

Mathematics
2 answers:
julia-pushkina [17]3 years ago
7 0
56/64 = 87.5 percent hope this helps (:
ivann1987 [24]3 years ago
3 0

Answer:

Exact percentage  = 87.5%

Explanation:

We need to find out the per cent of the women in the village.

So the percent of one unit is represented by 56/64.

we want 56 out of 64 as a percentage

we multiply by the 100 .

\frac{56}{64} *100

=0.875*100

=87.5 %

So, final answer is 87.5%

I hope all the steps are clear to you.

Please rate for this explanation.



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Look at the table. Make a conjecture about the sum of the first 25 positive even numbers.
insens350 [35]
Even number are of the form 2n.  The sum of this sequence is the average of the first and last terms times the number of terms.

So the first term is 2 and the 25th term is 50 so the sum is:

(2+50)(25/2)

52*12.5=650

The conjecture they wish you to make is that for n terms, the sum will be:

s=n(n+1)

And for 25 terms that would give you:

s=25*26=650
6 0
3 years ago
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Find the length of the chord made by 3x2 - y2 = 3 and y + x – 5 = 0.
MArishka [77]

Answer:

The correct answer is "9√2 units".

Step-by-step explanation:

The given equations are:

⇒ 3x^2-y^2=3...(equation 1)

⇒ y+x-5=0...(equation 2)

According to the 2nd equation, we get

⇒ y+x-5=0

⇒              y=5-x

On substituting the value of "y" in the 1st equation, we get

⇒  3x^2-y^2=3

     3x^2-(5-x)^2=3

     3x^2-(25+x^2-10x)=3

     2x^2+10x-28=0

On taking common, we get

     x^2+5x-14=0

On applying factorization, we get

     x^2+7x-2x-14=0

   x(x+7)-2(x+7)=0

           (x+7)(x-2)=0

                        x+7=0

                              x=-7

or,

                         x-2=0

                                x=2

Now,

The points are:

(-7, 12) = (x₁, y₁)

(2, 3) = (x₂, y₂)

By using the distance formula, the length of chord will be:

= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

On substituting the values in the above formula, we get

= \sqrt{(2-(-7))^2+(3-12)^2}

= \sqrt{(9)^2+(-9)^2}

= \sqrt{81+81}

= 9 \sqrt{2} units

8 0
3 years ago
The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely. 81x2 – 49 The
borishaifa [10]
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aliina [53]

Answer:

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7 0
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C−12&gt;−4 ...................................
WITCHER [35]
Add 12 to each side

so it should be C>8
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