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MrRa [10]
2 years ago
11

Will Mark Brainlest Help pls​

Mathematics
2 answers:
vampirchik [111]2 years ago
4 0

Answer:

x=2,y=2

Step-by-step explanation:

3y-1 = 5

or, 3y = 5+1

or, y = 6/3

y = 2

2x+1 = 3y-1

or, 2x = 3×2-1-1

or, 2x = 4

or, x = 2

-Dominant- [34]2 years ago
4 0

\\ \sf\longmapsto \left[{2x+1\atop 2x+x}\:\:\:{3y-1\atop 3}\right]=\left[{3y-1\atop 4}\:\:\;{5\atop 3}\right]

\\ \sf\longmapsto 3y-1=5

\\ \sf\longmapsto 3y=5+1

\\ \sf\longmapsto 3y=6

\\ \sf\longmapsto y=2

Put the value in 1st one

\\ \sf\longmapsto 2x+1=3y-1

\\ \sf\longmapsto 2x+1=3(2)-1

\\ \sf\longmapsto 2x+1=6-1

\\ \sf\longmapsto 2x+1=5

\\ \sf\longmapsto 2x=5-1

\\ \sf\longmapsto 2x=4

\\ \sf\longmapsto x=\dfrac{4}{2}

\\ \sf\longmapsto x=2

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sergejj [24]

The sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec

<h3>Calculating wavelength </h3>

From the question, we are to determine how many times longer is the first sound wave compared to the second sound water

Using the formula,

v = fλ

∴ λ = v/f

Where v is the velocity

f is the frequency

and λ is the wavelength

For the first wave

f = 20 waves/sec

Then,

λ₁ = v/20

For the second wave

f = 16,000 waves/sec

λ₂ = v/16000

Then,

The factor by which the first sound wave is longer than the second sound wave is

λ₁/ λ₂ = (v/20) ÷( v/16000)

= (v/20) × 16000/v)

= 16000/20

= 800

Hence, the sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec

Learn more on Calculating wavelength here: brainly.com/question/16396485

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6 0
1 year ago
Which of the following coordinates are not correctly named based on the image?
timama [110]

Answer:

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Step-by-step explanation:

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The correct format for writing this it is supposed to be (2,4).

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2 years ago
A bathtub empties at 15 gallons per minute. What is this in liters per second?
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Answer:

Step-by-step explanation:

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Account balance is $123.08

Step-by-step explanation:

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Total amount of checks = $23.09 + $7.56 + $125.11 + $4.28

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