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barxatty [35]
2 years ago
13

One gallon of paint covers 400 square feet. What is the least amount of paint needed to paint the walls of a room in the shape o

f a rectangular prism with a length of 20 feet, a width of 16 feet, and a height of 10 feet? Write your answer as a decimal.
Mathematics
1 answer:
Gnom [1K]2 years ago
7 0

Answer:

1.8 gallons would be used.

Step-by-step explanation:

TOTAL AREA TO BE PAINTED:

     2 x 10 x 20  +   2 x10x 16 = 720 ft2

720 ft2 / 400 ft2 /gal = 1.8 gal  

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The length and width of a rectangular room are measured to be 3.955±0.005m. Calculate the area of the room and its uncertainty i
Margarita [4]

Answer:

The area of the room and its uncertainty in square meters is:

15.642±0.040 m^2

Step-by-step explanation:

We know the area of a rectangular room is the multiplication of the length and width:

Area= 3.955m*3.955m\\Area= 15.642 m^2

Now we need to know the uncertainty, the uncertainty of a multiplication is:

\frac{δ_a}{|Area|} =\frac{δ_L}{|L|}+\frac{δ_W}{|W|} (1)

δ_A: Area uncertainty

δ_L: Length uncertainty

δ_W: Width uncertainty

A: Area of the room

L: Length

W: Width

Clearing the uncertainty of the area:

δ_A=(\frac{δ_x}{|x|}+\frac{δ_y}{|y|})*Area (2)

δ_A=(\frac{0.005}{|3.955|}+\frac{0.005}{|3.955|})*15.642 m^2

δ_A= 0.040 m^2

The area of the room and its uncertainty in square meters is:

15.642±0.040 m^2

6 0
3 years ago
Please help i will mark brainliest
barxatty [35]

Answer:

2

Step-by-step explanation:

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3 years ago
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0.051x40(0.5+0.01)x40 using distributive property
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Step-by-step explanation:

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The table represents a linear function. A two column table with six rows. The first column, x, has the entries, negative 2, nega
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Answer: The slope is 3

Step-by-step explanation:

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Another payment type enabled by smartphones is person-to-person payments, which are apps that allow people to send money electro
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Answer and Step-by-step explanation:

Person to person payment is an online technology that allows customers to transfer their money and funds from their account to another account through mobile phones. A p2p app allows one user to send money to another user by using an app or website—transaction including anything from paying a dinner bill, rent, or contributing to charity.

The increased obtaining of online banking, mobile banking, and e-commerce by users has paved the way for greater use of person-to-person payments. In the payment markets sending money between smartphones has become an ordinary matter. According to Billtrust, young adults are using a person to person payment more than two generations.

Nearly half of smartphone owners regularly used p2p payment apps. Most people used p2p payment app because it offers better security or most of their peers use it.

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