3 years ago

What present of 60 is 12?

Mathematics

1 answer:

Nata [24]3 years ago

6 0

Answer:

20%

Step-by-step explanation:

12=p×60/100=6p/10

p=120/6=20%

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Evaluate 15/5 + 40 . 7 - 3 to the power of 4.

Lina20 [59]

15/5 + 40.7 -3^4
= 3 + 40.7 - 81
= -37.3

hope this helps! :)))

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3 years ago

Baka Baka Banana<br><br> Who says this in One Piece?

aleksklad [387]

Answer:

Lol don’t know

Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

It is given that y varies inversely as x^2. If x is decreased by 50%, find the percentage change in y.

vova2212 [387]

Answer:

300%

Step-by-step explanation:

Given

$y\ \alpha\ \frac{1}{x^2}$

Required

Find the percentage change in y when x decreased by 50%

First, convert to equation

$y\ = \ \frac{k}{x^2}$

Where k is the constant of proportionality

When x decreased by 50%

$Y = \frac{k}{(x - 0.5x)^2}$

$Y = \frac{k}{(0.5x)^2}$

$Y = \frac{k}{0.25x^2}$

Expand

$Y = \frac{1}{0.25} * \frac{k}{x^2}$

Substitute $\frac{k}{x^2}$ for y

$Y = \frac{1}{0.25} * y$

$Y = 4 * y$

$Y = 4 y$

The percentage change is then calculated as:

$\%Change = \frac{Y - y}{y} * 100\%$

$\%Change = \frac{4y - y}{y} * 100\%$

$\%Change = \frac{3y}{y} * 100\%$

$\%Change = 3 * 100\%$

$\%Change = 300\%$

<em>The percentage in y is 300%</em>

7 0

3 years ago

Urgent help needed!

zalisa [80]

To write this in standard form, you need to eliminate the fraction in the coefficient of variable x. You can do this by multiplying 8 to the two sides of the equation:

8(y) = 8[(-5/8)x + 3]

8y = -5x + 24

Transpose the variable x to the other side:

5x + 8y = 24

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3 years ago

Type no, one, or infinite to complete the statement. Type only lowercase letters. Do not type spaces in your answer. 3x - 4y = 6

julsineya [31]

Answer:infinite both can e simplifies

Step-by-step explanation:

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3 years ago