the difference between two numbers is 4. three times the smaller number minus four times the larger is -28.. what are the numbers?
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OpenStudy (anonymous):
x = 16
y = 12
OpenStudy (anonymous):
9a squared - 121
OpenStudy (anonymous):
x - first number, y - second number
\[\begin{cases}x-y=4\\3y-4x=-28\end{cases}\]
I hope you can do it yourself now
x=16
y=12
OpenStudy (aroub):
The first number: x ==> smaller number
The second number: x+4 ==> larger number
=>3(x)-4(x+4)=-28
=>3x-4x-16=-28
=>3x-4x=16-28
=>-x=12
=>x=12
The number are: 12,16
:D
OpenStudy (aroub):
numbers*
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OpenStudy (anonymous):
i feel i had told u ld u the answer
OpenStudy (anonymous):
12,16 are not possible answers and i typed the qestion exactly as it reads. answers are, 5,9 8,12 7,11 6,10
OpenStudy (aroub):
Not possible!
OpenStudy (anonymous):
the problem you typed is definitely 12 and 16, maybe you typed it wrong?
OpenStudy (anonymous):
nope, read it word for word
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OpenStudy (anonymous):
well, try plugging 12 and 16 into the problem you typed and you'll see they work correctly