Me
a beauty salon buys bottles of gel for $4.50 and marks up the price by 40%. for what price do they sell each bottle?
[ $ ]

$6.30 each bottle

Step-by-step explanation:

What you do is you take $4.50 and times it by .40

4.50 x .40 = 1.80

1.80 + 4.50 = 6.30

$6.30 each bottle

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3

7x7=4 so if u carry the 9 it will be 33