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Yan is climbing down a ladder. Each time he descends four rungs on the ladder, he stops to see how much farther he has to go

User Pikapops
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1 Answer

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19 votes

Question:

Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stopped to see how much farther he has to go. If Yan made eight stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan and climbed?

4+4+4+4

8+8+8+8

(-1)(4+4+4+4)

(-8) + (-8) + (-8) + (-8)

Answer:


image

Explanation:

Given


image --- It is negative because he is climbing down


image

Required

An expression for the number of rungs climbed

To do this, we simply multiply the number of rungs by the steps taken.


image


image

This can be rewritten as:


image

The product, when written as sum is:


image

User ITomas
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