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Molodets [167]
3 years ago
11

-2x - y = -95x -2y = 18Solve as a whole number

Mathematics
1 answer:
nexus9112 [7]3 years ago
6 0

Answer:

x = 4, y = 1

(4, 1)

Step-by-step explanation:

-2x - y = -9

5x -2y = 18

-2x - y = -9

+2x     +2x

-y = 2x - 9

/-1    /-1

y = -2x + 9

5x -2y = 18

5x - 2(-2x + 9) = 18

5x + 4x - 18 = 18

9x - 18 = 18

    + 18   + 18

9x = 36

/9  /9

x = 4

Now, we solve for y:

-2(4) - y = -9

-8 - y = -9

+ 8     +8

-y = -1

/-1  /-1

y = 1

(x, y) -> (4, 1)

Hope this helps!

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3 years ago
The diagram shows a circle with center C, a diameter RS, and an inscribed triangle RST.
snow_tiger [21]

Answer:

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Step-by-step explanation:

m<RTS = 4x - 14 (given)

Based on the inscribed angle theorem, the measure of the inscribed angle in a semicircle = right angle (90°)

Therefore,

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4x - 14 + 14 = 90 + 14 (addition property of equality)

4x = 104

4x/4 = 104/4

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6 0
3 years ago
How much should be added to the sum of 25 1/ 6 and 7 2 /5 to get 60 answer
mina [271]

Answer:

<em>X</em> = 27 13/30

Step-by-step explanation:

First you need to find the least common denominator of 5 and 6 to get 30 so it is 25 5/30 + 7 12/30 + <em>x</em> = 60. From there you add the two together to get  32 17/30 + <em>x</em> = 60. Subtract 32 17/30 from both sides of the equation to get the value of <em>x</em> which comes out to 27 13/30.

5 0
3 years ago
2500=500e^0.06t solve for t
MariettaO [177]

Answer:

t=26.8239652

Step-by-step explanation:T=26.8239652 i believe is the best answer

4 0
3 years ago
There are 161 calories in 28 grams you eat 9 cashews totaling 12 grams. How many cashews are in one serving
makkiz [27]

Answer:

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5 0
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