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Softa [21]
3 years ago
5

2x+3y=105 And x+2y=65 what is the value for y

Mathematics
2 answers:
Gnesinka [82]3 years ago
8 0
Yas! systems of equations
convert one equation so that a single variable is one one side
x = 65 - 2y
plug it in the other equation
2(65 - 2y) + 3y = 105
130 - 4y + 3y = 105
130 - y = 105
25 = y
Romashka-Z-Leto [24]3 years ago
6 0
2x+ 3y = 105, x + 2y =65
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Answer:

4 and 5

Step-by-step explanation:

Make a system of equations:

x+y=9

x-y=-1

x=9-y

9-y-y=-1

9-2y=-1

-2y=-10

y=5

Since y=5, x must be 4 since 4+5=9 and 4-5=-1

Hope this helped!

4 0
3 years ago
Read 2 more answers
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7 0
3 years ago
Which expression is equivalent to 10x to the 6th why do the 12 / -5x to the negative 2 y to
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Step-by-step explanation:

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6 0
2 years ago
In a right triangle the two sides are 10 and 5. find all possible values for the third side.
nikitadnepr [17]

Answer:

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7 0
2 years ago
The perimeter of the rectangular playing field is 320 yards. the length of the field is 4 yards less than triple the width. what
fgiga [73]
Let the width be X
Then the length is X + 70
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Perimeter = 2 * width + 2 * length
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Check:
<span> 2 * 60 + 2 * 130 = 380 </span>
8 0
3 years ago
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