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Contact [7]
3 years ago
11

How many solutions does the equation 1/5(20x-25)=4x-5 have?

Mathematics
2 answers:
MariettaO [177]3 years ago
5 0

Answer:

Infinitely many solutions

Step-by-step explanation:

we need to simplify the equations

1/5(20x-25)=4x-5

distribute the 1/5

4x-5=4x-5

+5 to each side

4x=4x

divide each side by 4

x=x

since x=x there are infinitely many solutions.

meriva3 years ago
5 0

Answer:

no real solutions

Step-by-step explanation:

1/5(20x-25)=4x-5

1/5(20-25)=4-5

1/5(-5)=1

-1=1

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Solve the following....<br> <img src="https://tex.z-dn.net/?f=5x%2B3y%3D7%5C%5C3x-5y%3D-23" id="TexFormula1" title="5x+3y=7\\3x-
AlekseyPX

\qquad\qquad\huge\underline{{\sf Answer}}

let's solve ~

The given equations are :

\qquad \tt \dashrightarrow \:5x + 3y = 7 \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \: \:  - (1)

and

\qquad \tt \dashrightarrow \:3x - 5y = -  23 \:    \:  \:  \:  \: \:  - (2)

Now, let's multiply equation (1) by 5 and equation (2) by 3 ~

we will get the results as :

\qquad \tt \dashrightarrow \:25x + 15y = 35 \:  \:  \:  \:  - (3)

\qquad \tt \dashrightarrow \:9x - 15y  = - 69 \:  \:  \:  - (4)

Now, add equation (3) and (4) :

\qquad \tt \dashrightarrow \:25x + \cancel{ 15y} + 9x -  \cancel{15y }= 35 + ( - 69)

\qquad \tt \dashrightarrow \:34x =  - 34

\qquad \tt \dashrightarrow \:x =  - 1

Now, since we got the value of x, let's evaluate y~ by using equation (1) :

\qquad \tt \dashrightarrow \:5x + 3y = 7

\qquad \tt \dashrightarrow \:5( - 1)+ 3y = 7

\qquad \tt \dashrightarrow \:3y - 5 = 7

\qquad \tt \dashrightarrow \:3y = 12

\qquad \tt \dashrightarrow \:y = 4

Hence, value of y is 4

I hope you understood the whole procedure ~

8 0
2 years ago
Read 2 more answers
A ball is thrown from 4 feet off the ground with a vertical velocity of 30 feet per second.
FinnZ [79.3K]
The equation is h(t)=-16t^2+ V∨0t+H∨0

4 0
3 years ago
Help asap pleaseeeeeeeeee its due 5 and its 4 for me right now
Gre4nikov [31]

Answer:

The answer would be A

Step-by-step explanation:

1^2=1×1= 1

2^2 =2×2=4

3^2=3×3=9

4^2=4×4=16

Therefore,

√11  lies between 3 and 4

8 0
2 years ago
Read 2 more answers
What is the conversion factor to convert cups to liters?
Gemiola [76]

Answer:

0.2365882365 L/cup

Step-by-step explanation:

The conversion factor can be found from the size of a cup in relation to a gallon, and the size of a cubic inch in relation to a liter.

1\,\text{cup}=8\,\text{fl oz}\times\dfrac{231\,in^{3}}{128\,\text{fl oz}}\times\left(\dfrac{0.254\,\text{dm}}{1\,\text{in}}\right)^{3}\times\dfrac{1\,L}{1\,dm^{3}}\\\\=\dfrac{8\cdot 231\cdot 0.254^{3}}{128}\,L=0.2365882365\,L

3 0
3 years ago
Khan academy distance formmula
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Answer:

u forgot pic lol

Step-by-step explanation:

6 0
3 years ago
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