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mafiozo [28]
3 years ago
6

How do u find percent of change?

Mathematics
1 answer:
Ksju [112]3 years ago
7 0

Answer:

You find percent of change

by finding the differences between the numbers given

and by setting up a fraction to find the change because percentages deals with fractions

Then you simplify ur fraction by multiplying by 100

Step-by-step explanation:

e.g

find the percent of change from 20 to 80

find their differences

80-20= 60

set up a fraction

60/20

simplify your fraction by multiplying over 100

60/20*100

3*100=300%. answer

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WARRIOR [948]
Dont ask me why...I cant really explain it...but if u have 1 repeating decimal, u put it over 9. If u have 2 repeating decimals, u put it over 99....3 repeating decimals, put it over 999.

Examples :
0.7 (repeating) = 7/9
0.27 (repeating) = 27/99 when simplified = 3/11 <===
0.444 (repeating = 444/999 
8 0
3 years ago
Read 2 more answers
Let T be the plane-2x-2y+z =-13. Find the shortest distance d from the point Po=(-5,-5,-3) to T, and the point Q in T that is cl
GaryK [48]

Answer:

d=10u

Q(5/3,5/3,-19/3)

Step-by-step explanation:

The shortest distance between the plane and Po is also the distance between Po and Q. To find that distance and the point Q you need the perpendicular line x to the plane that intersects Po, this line will have the direction of the normal of the plane n=(-2,-2,1), then r will have the next parametric equations:

x=-5-2\lambda\\y=-5-2\lambda\\z=-3+\lambda

To find Q, the intersection between r and the plane T, substitute the parametric equations of r in T

-2x-2y+z =-13\\-2(-5-2\lambda)-2(-5-2\lambda)+(-3+\lambda) =-13\\10+4\lambda+10+4\lambda-3+\lambda=-13\\9\lambda+17=-13\\9\lambda=-13-17\\\lambda=-30/9=-10/3

Substitute the value of \lambda in the parametric equations:

x=-5-2(-10/3)=-5+20/3=5/3\\y=-5-2(-10/3)=5/3\\z=-3+(-10/3)=-19/3\\

Those values are the coordinates of Q

Q(5/3,5/3,-19/3)

The distance from Po to the plane

d=\left| {\to} \atop {PoQ}} \right|=\sqrt{(\frac{5}{3}-(-5))^2+(\frac{5}{3}-(-5))^2+(\frac{-19}{3}-(-3))^2} \\d=\sqrt{(\frac{5}{3}+5))^2+(\frac{5}{3}+5)^2+(\frac{-19}{3}+3)^2} \\d=\sqrt{(\frac{20}{3})^2+(\frac{20}{3})^2+(\frac{-10}{3})^2}\\d=\sqrt{\frac{400}{9}+\frac{400}{9}+\frac{100}{9}}\\d=\sqrt{\frac{900}{9}}=\sqrt{100}\\d=10u

7 0
3 years ago
How do I find X in this problem
pogonyaev
You know that BC is congruent to x so you need to solve for x using the ratio:
\frac{12}{24}=\frac{x}{BC}

So then we need to find BC.

We know:
A=\frac{base \times height}{2}
28=\frac{BC \times 7}{2}
Therefore BC =8

Then:
\frac{12}{24}=\frac{x}{8}
x=8 \times \frac{12}{24} = 4
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3 years ago
Match the term with the definition.
Bingel [31]

Answer:

A. Perpendicular Lines

B. Circle

C. Angle

D. Plane

E. Parallel Lines

Hope this helped! Mark as Brainliest Please! :)))

Step-by-step explanation:

8 0
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a dolphin swims 24 miles in 1.5 hours. The graph represents the speed of the sea lion. which statement is true
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Where's the graph that represents the speed of the sea lion?
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