2 years ago

The system has.......

Mathematics

2 answers:

Lerok [7]2 years ago

6 0

Answer:

An infinite number of solutions.

Step-by-step explanation:

Whenever lines overlap each other, it means they have an infinite number of solutions.

mezya [45]2 years ago

3 0

Answer:

Pretty sure it's one solution

Step-by-step explanation:

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Solve 2x + 5y = 20; 3x - 10y = 37 by elimination. How do you do this? Thank-you!

mr Goodwill [35]

$\left\{\begin{array}{ccc}2x+5y=20&\text{multiply both sides by 2}\\3x-10y=37\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+10y=40\\3x-10y=37\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad7x=77\qquad\text{divide both sides by 7}\\.\qquad\boxed{x=11}\\\\\text{Put the value of x to the first equation:}\\\\2(11)+5y=20\\\\22+5y=20\qquad\text{subtract 22 from both sides}\\\\5y=-2\qquad\text{divide both sides by 5}\\\\\boxed{y=-\dfrac{2}{5}}\\\\Answer:\ \boxed{x=11\ and\ y=-\dfrac{2}{5}}$

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3 years ago

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77julia77 [94]

Answer:

Step-by-step explanation:

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2 years ago

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When Sam’s little brother was born, he was 18 inches tall. Each year, he grows an average of 3 inches. Sam’s brother continues t

andrew-mc [135]

Answer:

Step-by-step explanation:

year 1 : 18 in

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2 years ago

Please help!!! ASAP<br><br> With all these questions

andrey2020 [161]

#1. 4:7 8:14 12:21
#2. 5:7 10:14 15:21
#3. 9:7 18:14 27:21
#4. 11:2 22:4 33:6
#5. 7:21 14:42 21:63
#6. 7:5 14:10 21:15
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#8. Equals
#9. Equals
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3 years ago

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mojhsa [17]

Answer:

There is a 30% decrese.

Step-by-step explanation:

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2 years ago