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3 years ago

When would you solve by elimination?

Mathematics

2 answers:

alina1380 [7]3 years ago

8 0

Answer:

when its a linear equation

Step-by-step explanation:

Rus_ich [418]3 years ago

4 0

Answer:

In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.

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An ant can travel at a constant speed of 980 inches every 5 minutes. At this rate, how far can the ant travel in 7 minutes?

Zarrin [17]

Answer:

$1372\: \mathrm{inches}$

Step-by-step explanation:

Since the ant travels at a constant speed, we can set up the following proportion:

$\frac{980}{5}=\frac{x}{7}$ , where $x$ is the distance the ant can travel in 7 minutes.

Solving for $x$ , we get:

$x=\frac{7\cdot980}{5}=\fbox{$1372\:\mathrm{inches}$}$ .

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Answer:

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