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3 years ago

Choose the best definition for the following term: substitution

2 answers:

7 0

<span>solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.</span>

zhannawk [14.2K]3 years ago

6 0

To replace one or more term(s) with number(s) and solving it after replacing it

Hope this helps

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kow [346]

Answer:

B) shifts the line 4 units down

Step-by-step explanation:

The point (x, f(x)) is moved to the point (x, f(x)-4), one with a y-coordinate 4 units lower. The line is shifted down 4 units.

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3 years ago

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The difference of 2 numbers is 90 and their quotient is 10 replay quick

andrew11 [14]

Answer:

The two numbers are 100 and 10

Step-by-step explanation:

Let's call the two numbers x and y.

$x-y=90 \\\\x\div y=10$

Add 7 to both sides of the first equation to isolate x:

$x=90+y$

Substitute:

$(90+y)\div y=10 \\\\90+y=10y \\\\90=9y \\\\y=10 \\\\x=100$

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2 years ago

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Andreas93 [3]

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