Question

On Monday, one share of a certain stock costs $41.45. On Tuesday, the cost goes up by $0.58. It goes down by $0.26 on both Wednesday and Thursday. On Friday, it goes down by $0.06. Write an expression to represent the cost of one share of the stock on Friday. Then evaluate the expression to find the cost on Friday.​

Answer 1

The cost of one share of the stock on Friday is $41.45

Explanation:

The initial cost of one share of the stock on Monday is $41.45.

On Tuesday, the cost goes up by $0.58, so the cost becomes:

$41.45 + $0.58 = $42.03

On Wednesday, the cost goes down by $0.26, so the cost becomes:

$42.03 - $0.26 = $41.77

On Thursday, the cost also goes down by $0.26, so the cost becomes:

$41.77 - $0.26 = $41.51

Finally, on Friday, the cost goes down by $0.06.

So the expression to represent the cost of one share of the stock on Friday is:

$41.51 - $0.06

To evaluate this expression, we simply subtract $0.06 from $41.51:

$41.51 - $0.06 = $41.45

Therefore, the cost of one share of the stock on Friday is $41.45

Answer 2

The cost of one share of the stock on Friday can be represented by the expression:

$41.45 + $0.58 - $0.26 - $0.26 - $0.06

Simplifying this expression gives:

$41.45 + $0.58 - $0.26 - $0.26 - $0.06 = $41.45 + $0.58 - $0.58

The two negative terms cancel out, leaving:

$41.45 + $0.00 = $41.45

Therefore, the cost of one share of the stock on Friday is $41.45.