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Nikolay [14]
3 years ago
13

Solve each given equation and show your work the whether each equation has one solution, an infinite number of solutions, or no

solution. Explain your answer.
2x+4(x-1)=2+4x
25-x=15-(3x+10)
4x=2x+2x+5(x-x)
Mathematics
1 answer:
Triss [41]3 years ago
8 0
2x+4x-4=2+4x
2x+4x-4x=2+4
2x=6
x=3

25-x=15-3x-10
3x-x= 15-10-25
2x= -20
x= -10

4x=2x+2x+5x-5x
2x+2x+5x-5x-4x
0 . no solution
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36v - 12 = 12 .....add 12 to both sides
36v - 12 + 12 = 12 + 12...simplify
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(36/36)v = 24/36
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3 years ago
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Emily Elizabeth has $1.50 in dimes and nickels. She has 22 coins in all. How many nickels does she have?
Marat540 [252]

Answer:

14

Step-by-step explanation:

We can set up the following system of equations:

\begin{cases}10d+5n=150\\d+n=22\\\end{cases}, where d is the number of dimes she has and n is the number of nickels she has.

Multiplying the second equation by -5 and adding both equations lets us isolate and solve for d:

10d+5n+(-5(d+n))=150+(-5(22)),\\5d=40,\\d=8

Plugging d=8 into any of the two equations will let us solve for n:

8+n=22,\\n=\fbox{$14$}.

Therefore, she has 14 nickels.

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Step-by-step explanation:

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4 years ago
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<h2>Answer: </h2><h2>99/5</h2><h2>~</h2><h3>Convert to a mixed number by placing the numbers to the right of the decimal over 10. </h3><h3>Reduce the fraction. </h3><h3>Then, convert the mixed number to an improper fraction by multiplying the denominator by the whole number and adding the numerator to get the new numerator. </h3><h3>Place this new numerator over the original denominator to get:</h3><h3>99/5</h3><h3>Or</h3><h3>\frac{99}{5}</h3><h2>~</h2>

Hope you have a good day, Loves!

Also if I'm right can you let me know please?

<em>Also Also if I am right can I please have Brainliest??</em>

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3 years ago
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