Sam wants to buy 8 pencils and 6 pens, wich cost a total of $8.50. he realizes he doesn’t have enough cash and instead takes only 4 of each, which cost only $5. what is the price of each pen and pencil

n = 0.75

p = 0.5

Step-by-step explanation:

let p = number of pencils

let n = number of pens

8p + 6n = 8.50      (1)

4p + 4n = 5           (2)

(2) x 2    8p + 8n = 10 (3)

8p + 6n = 8.50     (1)

8p + 8n = 10         (3)

(3) - (1)     2n = 1.50

                 n = 0.75

substitute n back in to find p

4p + 4 x 0.75 = 5

4p + 3 = 5

4p = 2

p = 0.5

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce