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umka21 [38]
3 years ago
5

A monument outside city hall has dimensions as shown below in the figure. If one gallon of paint can cover 213 ft^2, how many ga

llons of paint must be bought in order to paint the monument? Assume that the base of the monument cannot be painted and that paint can be bought only by the gallon.

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

sides

14 X 22 = 308 square foot there are four of these

308 X 4 = 1232 square foot.

triangles

A= 0.5 X b X h

0.5 X 14 X 10 = 70 square foot again there are four of these 70 X 4 = 280 square foot

1232 + 280 = 1512 square foot

1512/213 = 7.09859154

8 gallons of paint will need to be purchased.

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34kurt

Hello from MrBillDoesMath!

Answer:

180000

Discussion:

Let H = house and L = lot. The Question tells us that H + L = 420000 and L = 3/4H. We are asked to solve for L

H        + L = 420000                => L = 3/4H implies that H =4/3L

(4/3)L + L = 420000               => (4/3) + 1 = 7/3

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(3/7)(7/3)L = (3/7)420000       => as (3/7)(7/3) = 1

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Check:  

H + L                = 420000

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H =                   =240000

Is L = 3/4H ?

Does     180000 = 3/4 ( 240000)   ?

Does     180000 = (3* 240000)/4 = 720000/4 = 180000  Yes! so the answers check!

Thank you,

MrB

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