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3 years ago

8

42 decreased by twice Jenny's heightUse the variable j to represent Jenny's height.

2 answers:

castortr0y [4]3 years ago

8 0

Answer:

2j-42

Step-by-step explanation:

42 decreased means -42

twice Jenny's height(j) = 2j

Put this all together, you have 2j-42

Hope this Helps!

mezya [45]3 years ago

8 0

x = 42 - 2j

or

x = 42 - 2 ( j )

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3 years ago

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mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

$\left \{ {{3x-5y=19} \atop {x+y=1}} \right.$

You can use the Elimination Method to solve it. The steps are:

1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

$\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2$

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

5. The final step is to solve for "x" in order to find its value.

Then:

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Therefore, the solution is:

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3 years ago

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sweet-ann [11.9K]

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muminat

Answer:

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Step-by-step explanation:

g(x) + f(x)

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Step-by-step explanation:

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