MATHEMATICS HIGH SCHOOL

What percent of 40.4 is 50.5

Answers

Answer 1

Answer:

The solution of expression is, 125%

We have to given that,

To find what percent of 40.4 is 50.5.

Let us take,

x percent of 40.4 is 50.5.

Hence, We can write as,

x% of 40.4= 50.5

x/100 × 40.4 = 50.5

40.4x = 5050

x = 5050 / 40.4

x = 125

Therefore, The solution of expression is, 125%

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Answer 2

Answer: 50,5-100%
40,4-х%
x=(40,4*100)\50,5=80%
Answer:80%

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Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.A. y = one divided by twenty eightx2
B. x = one divided by twenty eighty2
C. -28y = x2
D. y2 = 14x

Answers

I think the best answer among the choices is B. x = one divided by twenty eighty2, hope that helps you

Help answer all questions please and tell me how you got the answers

Answers

8. You start with 240 gallons if in march you use 40% (.4(240)=96) you used 96 gallons in march, leaving you with 144 gallons. If you then used 25% in April (.25(144)=36) you would have used 36 gallons leaving you with 108 gallons at the end of April.

9. If 2277 is 110% the number of 2013 to find what 2013 was you would divide by 110%(1.1)
2277/1,1=2070 at the end of 2013
If 2070 is 90% then we will want to divide by 90% (.9) to get the year before that
2070/.9=2300 so 2300 people were signed up in the year 2012

10. 57.5=p(250)
to solve this divide both sides by 250 to get p=.23
As for the different elements to the equation, there are various answers such as what percentage of people donated $250 if the average amount of money donate from each one is 57.5 although that may no be what you instructor is looking for. pretty much just make up something that sounds okay and you should be fine

Circle is divided into 20 equal parts. What is the angle measure of three of those parts?

Answers

first, imagine a circle divided into 4 quarters
than you may use the following proportion

angle measure ------- part of circle
$90^0 - -----\frac14\n x \ \ ------\frac3{20}\n \n \frac14x=90^0\cdot\frac3{20}\n \frac14x=(270)/(20)\n \frac14x=\frac{27}2\ \ \ \ |\cdot4\n x=\frac{27}2\cdot4\n x=\frac{108}2\n \boxed{x=54\ degrees}$

Find the sum of the multiples of 3 from 3 to 99 inclusive

Answers

Multiples of 3 from 3 to 99 inclusive is a Aritmetic Progression where:

a1 = 3
an = 99
r = 3

Using the formula of general terms:

$a_n=a_1+(n-1).r\n \n 99=3+3(n-1)\n \n 99-3=3n-3\n \n 3n=99\n \n n=33$

Calculating sum:

$S_(33)=(33(a_1+a_(33)))/(2)\n \n S_(33)=(33(3+99))/(2)=(33*102)/(2)=1683$

What is 40 percent as a decimal?

Answers

Your answer= .4
To change 40% into a fraction, you have to move the decimal two spots to the left. If you are turning a decimal into a percent, you would move the decimal two spots to the right.

Answer:

$\Large \boxed{0.4}$

Step-by-step explanation:

To write a percent for a decimal, move the decimal point two places to the right. Add the percent sign.

First, divide by 100.

40/100=0.4

Therefore, the correct answer is 0.4.

What is the slope for this graph?

Answers

slope = rise/run
slope for this graph = 6/4 = 3/2

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