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Effectus [21]
3 years ago
13

Jennifer used 0.42 gallons of paint to completely cover a square wall with an area of 168 square feet. Which measurement is clos

est to the side length of this wall in feet?
Mathematics
1 answer:
Marina86 [1]3 years ago
6 0

Answer:

The answer to this question is: 12.96 ft ≈ 13 ft

Step-by-step explanation:

Data

Area 168 ft²

Length = ?

Volumen = 0.42 gallons

But we do not need the volume of paint because we know that the wall is squared-shape.

Only we need to know the formula to obtain the area of an square.

Formula   area = length²

So            168 = length²

Finally      √168 = length

             length = 12.96 ≈ 13 ft

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marishachu [46]

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<u>Step-by-step explanation:</u>

The given number sentence is 2-4/5 x 1/2

  • In order to solve this, the operations must be performed based on the BODMAS rule.
  • This means that, the operations should be performed in the order of Bracket, Of, Division, Multiplication, Addition and Subtraction.

Here, based on that above rule, the multiplication must be done in the first step and then subtraction should be done in the next step.

⇒ 2 - 4/5 × 1/2

⇒ 2 - 4/10

⇒ 2 - 2/5

Therefore, the given expression is reduced to 2- 2/5

cross multiply the denominator 5

⇒ (10-2) / 5

⇒ 8/5

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The answer is written in the form of Quotient(Remainder/ divisor)

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8 0
3 years ago
Two angles are supplementary and have a ratio of 1:4. what is the size of the smaller angle
Dima020 [189]
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ratio of 1:4.....added = 5

1/5(180) = 180/5 = 36 <=== smaller angle
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4 0
3 years ago
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Answer:

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Step-by-step explanation:

x + y = 66

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Answer: 8=1/2x

Step-by-step explanation:

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