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tiny-mole [99]
4 years ago
9

HELPP PLEASEEEEEEEEEEE

Mathematics
2 answers:
marissa [1.9K]4 years ago
7 0

Answer: B

Step-by-step explanation:

Black_prince [1.1K]4 years ago
5 0

Answer:

C

Step-by-step explanation:

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The solution is x = 3/5
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3 years ago
Read 2 more answers
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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
The farmer down the street has an orchard with both orange and grapefruit trees. Over the weekend, she collected 49 oranges and
jeka57 [31]

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Step-by-step explanation:

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10kg 20kg 24kg ?kg plz answer this for me
luda_lava [24]

Answer:

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Step-by-step explanation:

Mouse- M , Cat - C, Dog - D

M + C = 10 ----- (1)

M + D = 20 -------(2)

C + D = 24 --------(3)

(1) - (2) => C - D = -10 ---- (4)

(3) + (4) => 2C = 14

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Substitute C in (1)  => M + 7 = 10

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Substitute M in (2) => 3 + D = 20

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Therefore C + M + D = 7 + 3 + 17 = 27KG

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Rzqust [24]

Answer: $34.50

Step-by-step explanation

If you multiply .75=3/4 x 10 it will will be 7.50 so 10x 3.45= 34.50 or 7.50 x 3.45= 25.875

25.875/.75 = $34.50

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