3 years ago

What would be the easiest way to solve the system composed of the following two equations? 3=x+4y and 2x=-9

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

7 0

Answer:

The easiest way would be to try to solve for x

Step-by-step explanation:

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Solve each of the following equations. Be make sure to check your solutions. Solve for part b only.

Alona [7]

Answer:

or, 3x-5=2.5x+3-x+4

or, 3x-1.5x=7+5

or, 2.5x=12

or, x=4.8 solved.

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3 years ago

what is the common number to be subtracted from each term of the ratio 11:8 to get the new ratio 2:1.?

JulijaS [17]

Answer:

5 should be subtracted from each term

Step-by-step explanation:

$\frac{11-x}{8-x}=\frac{2}{1}$

Cross multiply,

1 * (11 - x) = 2*(8-x)

11 -x = 2*8 - 2*x

11 - x = 16 - 2x

Subtract 11 from both sides,

-x = 16 - 2x - 11

-x = 5 - 2x

Add 2x to both sides

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x = 5

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3 years ago

50 POINTS!!! I WILL GIVE BRAINLIEST TO WHOEVER SHOWS STEPS! THANK YOU!:)))

taurus [48]

Answer:

Step-by-step explanation:

If you have something that says it is the f(x) or just f(something) then that is just telling you what the x equals. In this case, x=4 so you plug that into the equation.

This gives you f(4)=4(4)+7. From here, you will use the order of operations to solve.

f(4)=4*4+7

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3 years ago

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7/12 - □ = 1/6<br><br><br>□ = ________

xz_007 [3.2K]

The answer is 5/12 because 1/6 converts to 2/6 and 7/12-2/6 is equal to 5/12

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3 years ago

Please help! What are the piecewise functions for this graph? Which means, what is d(t)?

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Answer:

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Step-by-step explanation:

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3 years ago