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Aneli [31]
3 years ago
15

(will give brainliest!!) There are two numbers. One number is twice the other number. The difference of the smaller number and h

alf the larger number is 40. An equation created to find the smaller number will have _
Mathematics
2 answers:
dedylja [7]3 years ago
7 0
So if the half larger number is a difference of forty wouldn't one of the numbers be 20?
nexus9112 [7]3 years ago
5 0
2x-x=40 so x=40?

Dont quote me here
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Natali [406]
\left\{\begin{array}{ccc}5x-2y=4\\3x+y=9&/\cdot2\end{array}\right\\+\left\{\begin{array}{ccc}5x-2y=4\\6x+2y=18\end{array}\right\\----------\\.\ \ \ \ \ 11x=22\ \ \ \ /:11\\.\ \ \ \ \ \ \ x=2\\\\3\cdot2+y=9\\6+y=9\\y=9-6\\y=3\\\\Answer:x=2;\ y=3


\left\{\begin{array}{ccc}3x-5y=13\\x-2y=5\end{array}\right\\\left\{\begin{array}{ccc}3x-5y=13\\x=2y+5\end{array}\right\\\\substitute:\\\\3(2y+5)-5y=13\\6y+15-5y=13\\y=13-15\\y=-2\\\\x=2\cdot(-2)+5=-4+5=1\\\\Answer:x=1;\ y=-2.
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3 years ago
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Andreas93 [3]
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3 years ago
What is the answer to 3p^4 times 5p^2
sladkih [1.3K]

Answer:

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4 0
3 years ago
Solve the equation. 25-3x=40 what does x equal?
9966 [12]

Answer:

x=-5

Step-by-step explanation:

25 - 3x = 40

-3x + 25 =40

-3x +25--25=40-25

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6 0
2 years ago
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