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Law Incorporation [45]
3 years ago
14

Professor Walter precisa pintar uma quadra, que tem o formato retangular, cujo comprimento é de 45 m por 38 m. Para isso ele vai

comprar baldes de tinta em uma loja de construção. Sabendo que com cada balde de tinta ele conseguirá pintar 72 m² de piso, quantos baldes de tinta ele precisará comprar
Mathematics
1 answer:
ololo11 [35]3 years ago
3 0

Answer:

24 buckets

Step-by-step explanation:

Given that :

Dimension of rectangular block = 45 m by 38 m

A bucket of paint will cover 72m² of floor

Total area of floor : Length * Width

Total Area = (45m * 38m) = 1710 m²

Buckets of paint required :

Total area / Area per bucket

= 1710m² / 72m²

= 23.75 buckets

= 24 buckets

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Soloha48 [4]

Answer:

x=2

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Solution:

First we find common denominators. It is "xy". Then we multiply numerators by common denominator. We get followings:

(4y-3x)/xy=1; (6y+15x)/xy=8

Then

4y-3x=xy;

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Multiply first equasion by 5

20y-15x=5xy

Now we add two equasions to get one

20y-15x=5xy

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We get

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Cut "y" and we will find "x"

26=13x

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Put x value into the first equasion(4y-3x=xy) to find out "y"

4y-6=2y

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3 years ago
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2 years ago
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Solve for x: |3x|=12
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Answer:

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Round 0.724 to the nearest tenth
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<h2>Answer:</h2>

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