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3 years ago

8(111) what does that mean

2 answers:

7 0

Answer: whenever you see a number on the left of a parenthesis, it means you have to multiply it, meaning that 8(111)=8*111=888

Step-by-step explanation: pls mark brainliest and have a great day :)

jasenka [17]3 years ago

4 0

Answer:

it means you just gotta multiply it fam its 888

Step-by-step explanation:

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3 years ago

Suppose a home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 288 cub

ratelena [41]

Answer:

The minimum cost is $17.30c

Step-by-step explanation:

Given

$V = 288$ --- Volume

$C_1 = 0.06$ --- cost of wall paint

$C_2 = 0.16$ ---cost of ceiling paint

Required

Minimum cost of paint

The volume is calculated as:

$V =xyz$

Substitute 288 for V

$288 =xyz$

Make z the subject

$z = \frac{288}{xy}$

The surface area is calculated as:

$Area = 2(yz + xz) + xy$

Because xy represent the dimension of the ceiling and the opposite of the ceiling (the floor) will not be painted. Hence, it does not require a coefficient of 2

The cost is:

$C = 0.06 * 2(yz + xz) + 0.16 * xy$