Question

Suppose we represent the distance above the ground by a positive integer and that

below the ground by a negative integer. If an elevator descends at a rate of 5m/min and

begins to descend from 15 m above the ground, what will be its position after 45

minutes?​

Answer 1

• Main question -

If an elevator descends at a rate of 5m/min and

begins to descend from 15 m above the ground, what will be its position after 45

minutes?​

• Answer-

 -210 m

• Explanation-

An elevator descends at a rate of  = 5m/min

The distance where it begins = +15 m

The position after 45 mins = 5 *45  = 225m below

=  225 - 15 = 210

= -210

So, the lift's position will be at -210m below the ground

• Conclusion -

Hope it helps

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Answer 2

For your question:2(3-2x)=13

6-2x=13

-2x=13-6

-2x = 7

x= -7/2