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3 years ago

21x+7y=42 and -5x+5y=10 Find the solution to the system of equations

Mathematics

1 answer:

stiv31 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

x=1 y=3

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2 years ago

Cual expresion es equivalente a 5n+8 when n is equal 2

FromTheMoon [43]

If n is 2, you substitute 2 for n and multiply 5(2)+8= 10 +8 = 18

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3 years ago

I need this answer fast! Please!

vovangra [49]

Answer:

$\large\boxed{\begin{array}{c|c|c|c}Length:&4cm&2cm&8cm\\Width:&6cm&12cm&3cm\\Height:&9cm&9cm&9cm\end{array}}$

Step-by-step explanation:

The formula of a volume of a cube with side length a:

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$216=2\cdot2\cdot2\cdot3\cdot3\cdot3=(2\cdot2)\cdot(2\cdot3)\cdot(3\cdot3)=4\cdot6\cdot9\\\\216=2\cdot2\cdot2\cdot3\cdot3\cdot3=2\cdot(2\cdot2\cdot3)\cdot(3\cdot3)=2\cdot12\cdot9\\\\216=2\cdot2\cdot2\cdot3\cdot3\cdot3=(2\cdot2\cdot2)\cdot3\cdot(3\cdot3)=8\cdot3\cdot9\\\vdots$

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3 years ago

310=-6.2f solve for f

Naddik [55]

Divide both sides by -6.2:
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6 0

3 years ago

What is 62394 rounded to the nearest ten

Semmy [17]

Answer:

62390

Step-by-step explanation:

you have to round up if it's 5 or more and round down if it's less.

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3 years ago

21x+7y=42 and -5x+5y=10 Find the solution to the system of equations​

21x+7y=42 and -5x+5y=10 Find the solution to the system of equations