A train leaves Chicago traveling west at
60 miles per hour. An hour later, another
train leaves Chicago traveling east at
80 miles per hour. Complete and solve
the equation to find when the two trains
are the same distance from Chicago.

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Ответ:

sam1147

24.07.2021

Mathematics

He should spend 3 minutes or less on each scale

Sven made a mistake in the symbol of inequality, placing lesser or equal instead of greater or equal

Step-by-step explanation:

Let

t ------> is the number of minutes he spends on each scale

Remember that the phrase "at least" is equal to "greater than or equal"

The inequality that represent this scenario is

$70-5t \geq 55$

solve for t

$-5t \geq 55-70$

$-5t \geq -15$

Multiply by -1 both sides

$5t \leq 15$

Divide by 5 both sides

$t \leq 3$

Sven is incorrect

He should spend 3 minutes or less on each scale

Sven made a mistake in the symbol of inequality, placing lesser or equal instead of greater or equal

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A train leaves Chicago traveling west at 60 miles per hour. An hour later, another train leaves Chicago traveling east at 80 miles per hour. Complete and solve the equation to find when the two trains are the same distance from Chicago.