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hodyreva [135]
3 years ago
11

URGENT 15 POINTS!!!!What is the solution of the system?

Mathematics
2 answers:
ohaa [14]3 years ago
8 0
The elimination method is a sufficient way to solve problems. 

2x+y= 20
6x-5y=12

Add 5y to the one equation.

2x+6y= 20
6x= 12

Subtract 2x from both sides. 

6y= 20
4x= 12

Divide 6 by 20. 
y= 3.3 

Divide 4 by 12.
x= 3

I hope this helped you!

Brainliest answer is appreciated!
Mila [183]3 years ago
8 0
I don't know if this helps but...
(2x4)+6=10
(6x12) - (5x12) = 12

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(-0.25x -8)-(5.5x + 9.4) the simplified expression
Alja [10]

Answer:

=−5.75x−17.4

Step-by-step explanation:

=−0.25x−8+−1(5.5x+9.4)

=−0.25x+−8+−1(5.5x)+(−1)(9.4)

=−0.25x+−8+−5.5x+−9.4

another way >>>><<<<

=−0.25x+−8+−5.5x+−9.4

=(−0.25x+−5.5x)+(−8+−9.4)

=−5.75x+−17.4

Answer:

=−5.75x−17.4

3 0
3 years ago
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kicyunya [14]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Nancy and Kevin collect coins. Nancy has x coins. Kevin has 9 coins fewer than five times the number of coins Nancy has. Write a
Alexus [3.1K]

Answer:

x + (5x-9)

Step-by-step explanation:

x stands for the number of coins Nancy has

Kevin has 9 less than 5 times what Nancy has, so his part of the expression is 5x-9

To find the total number of coins they have, you have to add Nancy's number of coins x plus Kevin's number of coins 5x-9

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But you have to put parentheses around Kevin's 5x-9 so that part of the expression is calculated first, as per order of operations

3 0
2 years ago
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Ulleksa [173]

Answer:108

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8 0
4 years ago
Write the expression using exponents. 8 x 8 x 8 x 8 x 8​
MrRissso [65]

Answer:

<h3>8^{5}  or 32,768</h3>

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8 x 8 x 8 x 8 x 8

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4 0
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