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Dave owns 15 shares of ABC mining stock. On Monday, the value of each share rose $2, but on Tuesday the value fell $5. What is the change in the value of Dave’s shares?

Answer :

NATHANBOYLENGO

Answer:

Let's take each share by itself first.

First, the value of each share rose by 2. So we have +2. Then it fell by 5. So we have 2 - 5 = -3. Each share has a net value of negative 3.

Dave owns 15 shares. So 15 * (-3) = -45.

-$45
In short, the answer is $45

Let x = the current value of the stocks

So if each stock increases by 2 dollars - the total value increases by 15 lots of $2

x + (15 x 2) = the new value (we will call this n)

Each stock then decreases in value by $5

So…

n - (5 x 15) = the final value of the stocks (we will call it f)

$2 - $5 = -3$

And -3 x 15 = -45

So Dave has lost $45 in shares

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