40-gal tank $170 Aquarium light $30

Filtration system $65

Thermometer $2

18-lb bag of gravel $13

Large rocks $3 per lb

Clown fish $20 each

Damselfish $7 each

Kevin bought 4 bags of gravel to cover the bottom of his fish tank. He has 5 pounds of gravel left over.

How much gravel did Kevin use to cover the bottom of the tank?

Kevin used pounds of gravel.
help I'm gonna give brainlie

Kevin used 67 pounds of gravel.

Step-by-step explanation:

18pounds= 1 bag

4bags=?

18 x 4= 72

4 bags= 72 pounds

He has 5 pounds of gravel left over.

72 - 05= 67

Kevin used 67 pounds of gravel.

*EXTRA~(pounds can also be wrote as the letters lbs)

(so lbs means the same thing as pounds)

(lbs and pounds are both pronounced and said as the word "pounds")~EXTRA*

UV = 52

Concept:

Additive property of length, or the segment addition postulate, states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Solve:

Given information

TU = 4x

UV = 2x + 14

TV = 7x - 5

Given expression deducted from the additive property of length

TV = TU + UV

Substitute values into the expression

7x - 5 = 4x + 2x + 14

Combine like terms

7x - 5 = 6x + 14

Subtract 6x on both sides

7x - 5 - 6x = 6x + 14 - 6x

x - 5 = 14

Add 5 on both sides

x - 5 + 5 = 14 + 5

x = 19

Find UV by substituting the value of x

UV = 2x + 14 = 2 (19) + 14 =

Hope this helps!! :)

Please let me know if you have any questions