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FrozenT [24]
3 years ago
11

Percent decrease from 28 seconds to 23

Mathematics
2 answers:
Nitella [24]3 years ago
6 0
.18%
28-23= 5
5 divided by 28= .1785
round to nearest tenth to find your percentage

nasty-shy [4]3 years ago
3 0
28 - 23 = 5
Then you do 28 divided by 5. The reason why I chose 28 was because it's the original number. You always divide your answer to the original number. So 28 divided by 5. 

So this equals 5.6. So the percentage decrease is 5.6%
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What term can you add to 5/6x-4 to make it equivalent to 1/2x-4?
patriot [66]

\frac{-1}{3}x can be added to \frac{5}{6}x-4 to make it equivalent to \frac{1}{2}x-4.

Step-by-step explanation:

Let,

y be the term that can be added to given fraction.

Therefore;

(\frac{5}{6}x-4)+y=\frac{1}{2}x-4

Subtracting \frac{5}{6}x-4 from both sides to find y

(\frac{5}{6}x-4)-(\frac{5}{6}x-4)+y=\frac{1}{2}x-4-(\frac{5}{6}x-4)\\\\\frac{5}{6}x-4-\frac{5}{6}x+4+y=\frac{1}{2}x+4-\frac{5}{6}x+4\\\\y=\frac{1}{2}x-\frac{5}{6}x\\\\y=\frac{3-5}{6}x\\\\y=\frac{-2}{6}x\\\\y=\frac{-1}{3}x

\frac{-1}{3}x can be added to \frac{5}{6}x-4 to make it equivalent to \frac{1}{2}x-4.

Keywords: fraction, subtraction

Learn more about fractions at:

  • brainly.com/question/7153188
  • brainly.com/question/7151553

#LearnwithBrainly

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4 years ago
There is a jar of 25 black marbles and 50 red marbles what is the probability at least 2 are red
liraira [26]
2/3 chance you pull red on the first pull because there are 50 red to the 25 black marble
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What is the inverse of this equation f(x) = 1/4(x+3)^2+2
Masja [62]

Answer:

y = √(4x - 8) - 3

Step-by-step explanation:

y = 1/4(x + 3)² + 2

To find the inverse, switch the places of the x and y.  

x = 1/4(y + 3)² + 2

Solve for y.

x - 2 = (1/4(y + 3)² + 2) - 2

x - 2 = 1/4(y + 3)²

4(x - 2) = 4(1/4(y + 3)²)

4x - 8 = (y + 3)²

√(4x - 8) = √((y + 3)²)

√(4x - 8) = y + 3

√(4x - 8) - 3 = (y + 3) - 3

√(4x - 8) - 3 = y

y = √(4x - 8) - 3

4 0
4 years ago
Find the distance between the points (0,0) and(6,-8)
Y_Kistochka [10]

The formula of a distance between two points:

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

We have the points (0, 0) and (6, -8). Substitute:

d=\sqrt{(6-0)^2+(-8-0)^2}=\sqrt{6^2+(-8)^2}=\sqrt{36+64}=\sqrt{100}=\boxed{10}

7 0
4 years ago
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