Math (prealgebra)

posted by .

the cost of apen is 3 times the cost of a pencil. the cost of 4 pencils and 3 pens is $9.75. what is the cost of a pencil?

can't find a formula for this problem.

help is appreciated.

  • Math (prealgebra) -

    cost of pencil = p
    cost of pen = 3p
    4p + 3(3p) = 9.75

  • Math (prealgebra) -

    thank you damon

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math, help

    how do i write the equations so i can solve it i will do the solving but help me out with the equation please.for the following: Four pencils and five pens cost$2.00. THree pencils and four pens cost $1.58. Find the cost fo a pencil …
  2. Algebra1

    Sally bought some ordinary pencils and 4 times as many special pencils. Each ordinary pencil cost $0.20 and each special pencil cost $0.35. She spent $14.40. How many of each pencil did she buy?
  3. math

    8 pens cost $4 more than 8 pencils. Harry paid $8 for 4 pens and 4 pencils. What was the cost of a pencil?
  4. maths-urgent

    Arjun spent Rs.12 to purchase some pens and pencils.The cost of a pen and pencil are in the ratio 3:2. the total cost of a pen and a pencil is Rs. 3. if the total number of pens and pencils he purchased is7, find the number of pens …
  5. Math

    In a store, pencils have one price and pens have another. 3 Pencils and 2 pens cost 78 cents. 2 pencils and 3 pens cost 72 cents. How much does 1 pencil and 1 pen cost?
  6. math

    The cost of a pencil is $0.25 more than the cost of an eraser. If the cost of 8 pencils and 10 erasers is $12.80, find the cost of each.
  7. maths

    the total cost of 5 pens and 10 pens is 30 . of pen cost 3 more than the pencil . find the cost of each item
  8. Math

    a box of pencils cost the same as 11 erasers and 7 pencils. a box of erasers cost the same as 6 erasers and a pencil. a box of empty boxes and an erasers cost the same as a pencil. given that boxes cost a penny and each of the boxes …
  9. Math

    A pencil, eraser and notebook cost a total of $1. If a pencil costs more than 2 erasers, 8 erasers cost more than 3 notebooks, and 5 notebooks cost more than 6 pencils, find the cost of a pencil. I don't know what to do. please help!!!!
  10. math

    Theresa has a chose of which pack of pencils to buy. At the store 20 pencils cost $4.00, or 12 pencils for $2,70. A) which is the better buy based on its cost per pencil?

More Similar Questions