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Akimi4 [234]
3 years ago
7

⎧​−8x+4y=24−7x+7y=28​

Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

x= 103 /15 y +  −28 /15

Step-by-step explanation:

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What is an equation of the line that passes through the point (-4, -7) and is
ale4655 [162]

Answer:

The answer is

<h2>y = 3x + 5</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the line parallel to 3x - y = 14 we must first find the slope of 3x - y = 14.

So we have

y = 3x - 14

Comparing with the general equation above

Slope / m = 3

Since the lines are parallel their slope are also the same

So slope of parallel line = 3

Equation of the line using point ( - 4 , -7) and slope 3 is

<h3>y + 7 = 3(x + 4) \\ y + 7 = 3x + 12 \\ y = 3x  + 12 - 7</h3>

We have the final answer as

<h3>y = 3x + 5</h3>

Hope this helps you

6 0
3 years ago
Question 15 of 25<br> What is the value of x in the diagram below?<br> 49<br> LY<br> 14<br> 2
Anni [7]
The answer is 7, it’s just a simple division question. You can also tell because the 14 went to a 2.
3 0
2 years ago
Simplify the ratio 4.5: 3 1/2 in its simplest form
Law Incorporation [45]

Answer:

9 : 7

Step-by-step explanation:

Given

4.5 : 3 \frac{1}{2} ( multiply both parts by 2 to clear the fractions )

= 9 : 7

5 0
3 years ago
A sound wave has a frequency of 125 Hz and a speed 5000 m/s What is the wavelength of the wave
kipiarov [429]

The wave length of the sound with parameters frequency of 125 Hz and a speed 5000 m/s is 40 meters

<h3>Given Data</h3>

velocity = 5000 m/s

frequency = 125 Hz

wavelength = ??

We know that the relationship between speed, frequency and wavelength is given as

v = fλ ----------------------------1

substitute our given parameters

5000 = 125 * λ

Divide both sides by 125

λ = 5000/125

λ = 40 m

Hence the wave length of the sound is 40 meters

Learn more about sound here:

brainly.com/question/24544245

5 0
3 years ago
tickets to a play cost $11 each. There is also a service charge of $4 per order. Write ab equation for the relationship that giv
abruzzese [7]
Y=11x+4. formula: y=mx+b. insert the number of tickets where x is times 11 then add 4 to your total
3 0
4 years ago
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