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3 years ago

Can someone help me with this pleaseeeee ASAP

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

20 + 20 + 10 + 25 = 75

75 - 2 = 73

P ( blue for the third selection ) = 20/73

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I need awnsers please

romanna [79]

$y=f(x) =12\sqrt x\\\\\text{Replace x with y and then solve for y:}\\ \\~~~~~~~x = 12\sqrt y\\\\\implies \sqrt y = \dfrac{x}{12}\\ \\\implies y = \dfrac{x^2}{144}\\\\\implies f^{-1} (x) = \dfrac{x^2}{144} \\\\\text{Hence the inverse of the function is}~ \dfrac{x^2}{144}$

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2 years ago

This table shows the populations of the four largest cities in the state of Wyoming. How many more people live in Cheyenne than

Aleks [24]

Answer:

28650

Step-by-step explanation:

just subtract 59,466-30,816

5 0

3 years ago

Read 2 more answers

If there are 300 cars and 80 of them are black, what percent of the cars are black

kari74 [83]

The percentage of cars that are black when 80 cars of 300 cars are black is 26.67 or 26 2/3 %.

The percentage is similar to the fractional representation of quantities, where the quantity is shown as a part of the whole, but here the whole is fixed to be 100.

To derive a percentage in fractional form, we divide it by 100.

To derive a fractional form in percentage, we multiply it by 100.

In the question, we are given that 80 cars of 300 cars are black.

We are asked the percentage of cars that are black.

The fraction representing black cars of whole cars can be shown as 80/300 = 4/15.

To convert this into a percentage, we multiply it by 100.

Thus, the percentage of cars that are black = 4/15 * 100% = 80/3% = 26 2/3% = 26.67%.

Thus, the percentage of cars that are black when 80 cars of 300 cars are black is 26.67 or 26 2/3 %.

Learn more about percentages at

brainly.com/question/843074

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5 0

2 years ago

What percent of 100 is 30?

Naddika [18.5K]

So, the equation to solve then is: 0.3 x=100
Solving for x, we get x=100 /0.3
or x, we get x=333.333333

This means, 100 is 30 % of 333.333333

6 0

3 years ago

Read 2 more answers

How many seconds will it take an echo to reach your ears if you yell toward a mountain

DiKsa [7]

It will take 0.556 seconds for an echo to reach one's ears

<h3>Calculating the time to hear an echo</h3>

From the question, we are to determine how long it would take an echo to reach one's ears

From the formula,

$Speed = \frac{2 \times distance \ travelled\ by \ sound}{Time}$

NOTE: To hear an echo, the sound will travel to and fro, hence, it will cover twice the distance

From the given information,

Distance = 92.0 m

NOTE: Speed of sound in air at 0 °C ≅ 331 m/s

Putting the parameters into the formula, we get

$331 = \frac{2 \times 92.0}{Time}$

$Time = \frac{2 \times 92.0}{331}$

Time = 0.556 secs

Hence, it will take 0.556 seconds for an echo to reach one's ears.

Learn more on Calculating the time to hear an echo here: brainly.com/question/16676723

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6 0

2 years ago