word problem

[jurontay]

word problem please help

Teresa purchased pen for 50 cent each and penciles for 25 cent each. she purchased 10 more penciles then pens and gave the clerk a five-dollar bill, which was more than enough to pay the total cost. Let x represent the nmber of pen, and write an algebric expression for each item in parts a through c.

a. The total cost in dollars of the pens.
b. the number of penciles.
c. The total cost in dollars of the penciles.
d. The sum of the costs in part a and c is less then $5.00. Write and solve an inequality to determine the possibilities for the number of pens and penciles that Teresa purchased.

Please solve and explaine.

answer
a. x= $1.00
b. 10 penciles
c. $2.50

 

[mmm4444bot]

Let x represent the nmber of pen, and write an algebric expression for each item in parts a through c.

There are two clues, in the information above.

The first clue is that the symbol x represents the number of pens that Teresa bought. This is why it does not make sense to write x = $1.00 for part (a). The symbol x does not represent a dollar amount.

The answer for part (a) is the number of pens times 0.50 dollars.

The second clue is the instruction to write "an algebraic expression" for each part (a) through (c). The phrase "algebraic expression" means that it contains the symbol x somewhere, like the following examples.

x + 5

25x

4(x - 1)

Each of your answers for parts (a) through (c) needs to be an expression that contains the symbol x. Remember, x stands for the number of pens that Teresa bought.

For example, if Teresa also bought 5 erasers, then the total number of pens and erasers would be the algebraic expression x + 5.

 

[Deleted member 4993]

Teresa purchased pen for 50 cent each and penciles for 25 cent each. she purchased 10 more penciles then pens and gave the clerk a five-dollar bill, which was more than enough to pay the total cost. Let x represent the nmber of pen, and write an algebric expression for each item in parts a through c.

a. The total cost in dollars of the pens.
b. the number of penciles.
c. The total cost in dollars of the penciles.
d. The sum of the costs in part a and c is less then $5.00. Write and solve an inequality to determine the possibilities for the number of pens and penciles that Teresa purchased.

Please solve and explaine.

answer
a. x= $1.00
b. 10 penciles
c. $2.50

If x represent the nmber of pen then the answer x= $1.00 is WRONG.