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Alik [6]
3 years ago
8

Paula a college student earned $3,600 one summer during the following semester she spent $2500 for tuition $650 for rent and $43

4 food the rest went for miscellaneous expenses what fractions show the amounts Paula spent on tuition rent food and miscellaneous expenses
Mathematics
1 answer:
Fed [463]3 years ago
3 0
The fraction you are looking for is expenses/earnings 

So (2500+650+434)/3600
=224/225 

If you want to turn this into a percentage just multiply by 100, to give you 99.56%.
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3. Two of the vertices of an equilateral triangle are (0, -a)
egoroff_w [7]

The third coordinate of the equilateral triangle is (\sqrt3a,0). Ir can be obtained by distance formula.

What is distance formula?

It gives the distance between two coordinates.

Distance formula is given by the following expression:

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

Consider the third cordinate is (x,0) and x is positive because it is on tight side on the x axis.

Now, since the triangle is equilateral hence, the distance of (x,0) from (0, -a) and (0, a) should be equal to distance between (0, -a) and (0, a).

Now, caculate the distance between (0,-a) and (0, a).\sqrt{(0-0)^2+(-a-a)^2}=2a

Now, distance between (x,0) and (0, a) should be 2a.

\sqrt{(x-0)^2+(0-a)^2}=2a\\\sqrt{x^2+a^2}=2a

Now, square on both the sides.

x^2+a^2=4a^2\\x^2=3a^2\\x=\sqrt3aand -\sqrt3a

But the negative value of x is not possible because the coordinate lies on the right side.

Hence, the third coordinate of equilateral triangle is (\sqrt3a,0).

Learn more about distance formula from the following link:

brainly.com/question/7243416

#SPJ1

5 0
1 year ago
Help please ASAP. Correct answer will get brainly
djverab [1.8K]

Answer:

I think it's 3,6.....................

4 0
2 years ago
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For every 3 wrapped packages Mary uses 1/2 roll of wrapping paper how many packages can she wrap with 2 1/2 rolls of wrapping pa
grin007 [14]
She can wrap 15 packages :)
6 0
3 years ago
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1- AT OAKNOLL SCHOOL, 90 OUT OF 270 STUDENTS OWN COMPUTERS. WHAT PERCENT OF STUDENTS OF OAKNOLL SCHOOL DO NOT OWN COMPUTERS? ROU
V125BC [204]
1. 270÷90=3=30% have and 70% don't have a computer.
8 0
3 years ago
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Use technology to find the line of best fit for the following data.
likoan [24]

Given:

The data points are:

(1, 0), (2, 3), (3,1), (4,4), (5,5)

To find:

The equation of best fit line in the form of y=mx+b and then find the value of b.

Solution:

The general form of best fit line is:

y=mx+b              ...(i)

Where, m is the slope of best fit line and b is the y-intercept of the line.

Using the graphing calculator, we get the equation for the best fit line and the equation is

y=1.1x-0.7          ...(ii)

On comparing (i) and (ii), we get

b=-0.7

Therefore, the value of b is equal to -0.7.

3 0
3 years ago
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