A 6-pack of felt-tip pens costs $2.16. What is the unit price?

Skip to content# A 6-pack of felt-tip pens costs $2.16. What is the unit price?

Mathematics ##
Comments (4) on “A 6-pack of felt-tip pens costs $2.16. What is the unit price?”

### Leave a Reply Cancel reply

A 6-pack of felt-tip pens costs $2.16. What is the unit price?

it is x=-4

step-by-step explanation:

Step-by-step explanation:

$3.68 for 16 pens

$3.68 per 16 pens

($3.68) / (16 pens)

$0.23 / (1 pen)

$0.23 / pen

$0.23 per pen

Hello!

the answer is:

the correct option:

b. [tex]x=2.23[/tex]

why?

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

[tex]7^{x}=77[/tex]

then, using placing logarith with base 7 on both sides of the equation, we have:

[tex]7^{x}=77log_{7}(7^{x})=log_{7}(77)x=log_{7}(77)x=2.2322[/tex]

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

[tex]x=2.23[/tex]

hence, we have that the correct option:

b. [tex]x=2.23[/tex]

have a nice day!

$0.36

Step-by-step explanation:

Because you divide $2.16 & 6 to get it.