The cost of the first class postage increases by $0.23 for each ounce, after the first ounce. the cost of mailing a 14 ounce letter is $3.36. what is the cost of mailing a 2o ounce letter?

Solution

y = mx + b

y represents the total cost, m = $0.23

Given: 14 ounce letter cost $3.36

Now let's form the equation.

3.36 = 0.23(13) + b

Now let's find the cost of first ounce.

3.36 = 2.99 + b

b = 3.36 - 2.99

b = $0.37

The cost for 1st ounce = 0.37

Cost for mailing a 20 ounce letter.

0.23*19 + 0.37

= 4.37 + 0.37

= $4,74

The cost of mailing a 20 ounce letter is $4.74

Thank you. :)

8496 cars

step-by-step explanation:

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )