<span>4x+2y=10
x-y=13
x=13+y
4(13+y)+2y=10
52+4y+2y=10
52+6y=10
6y=-42
y=-7
x=13+y=13-7=6
</span>
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
If the lower level has 100 less than 2 times as many seats as the upper level then the expression is 2x-100 and the middle level has 80 more than 3 times as many seats as the upper level so it's 3x+80 and lastly the top level is just x.
so now for the equation you would add all those expressions and they all should equal 2680:
but now don't forget to plug in for the middle level:
Therefore the middle level has 1430 seats.
|-20|-|6|
Find the absolute value of |-20| and |6|.
|-20| = 20
|6| = 6
|-20|-|6| becomes 20 - 6.
20 - 6 = 14
The value of the expression |-20|-|6| is 14.
Step-by-step explanation:
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conjunction are the words that join 2 sentences
4y-6y+10
10y+10
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