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Korolek [52]
3 years ago
5

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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is this a quiz?

Step-by-step explanation:

8 0
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
7 0
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:

V=a^3

We have a = 6cm. Substitute:

V=6^3=216\ cm^3

\begin{array}{c|c}216&2\\108&2\\54&2\\27&3\\9&3\\3&3\\1\end{array}

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

7 0
3 years ago
310=-6.2f solve for f
Naddik [55]
Divide both sides by -6.2:
-50 = f
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.

3 0
3 years ago
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