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lyudmila [28]
2 years ago
14

PLEASE HELP ME  Which of the following is the correct graph of the compound inequality 4p + 1 > −7 or 6p + 3 < 33? (1 poin

t) a number line with open circles at negative 2 and 5 with shading in between. number line with open dot at negative 2 with shading to the left and an open dot at 5 with shading to the right number line with shading everywhere. number line with open dot at negative 2 and a closed dot at 5 with shading in between

Mathematics
2 answers:
Blizzard [7]2 years ago
5 0

Answer with explanation:

The two compound Inequality is

1. →→4 p +1 > -7

 Subtracting , 1 from both sides

→4 p +1 -1 > -7 -1

→ 4 p > -8

Dividing both sides by, 4 we get

p > -2

⇒⇒Second , Inequality is

6 p + 3 < 33

Subtracting , 3 from both sides

→6 p +3 - 3 < 33 -3

→6 p < 30

Dividing both sides by 5, we get

→p<5

The solution of the two combined inequality is

1.→ p > -2 and p < 5.

≡-2 < p <5

Combining them we get the solution set,which is, p ∈ (-2,5)

Option A: →A number line with open circles at negative 2 and 5 with shading in between.

nikitadnepr [17]2 years ago
4 0
The first inequality has solution
  4p > -8 . . . . . . subtract 1
  p > -2 . . . . . . . divide by 4
This is graphed as an open dot at -2, with shading to the right.

Neither inequality symbol includes "or equal to", so both dots are open dots. The appropriate choice is the first one:
  a number line with open circles at negative 2 and 5 with shading in between
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It takes 5.22 hours to install carpeting in a room

Step-by-step explanation:

At first lets find the relation between yard, feet and inch

1. 1 yard = 3 feet

2. 1 foot = 12 inches

3. 1 yard = 36 inches

Let us change all measures to inches

∵ 1 yard = 36 inches

∴ 1 yard² = (36)² inches²

-  Fine Floors can install 15 square yards of carpeting in 4 hours and

  30 minutes

∵ 15 yard² = 15 × (36)² inches²

∴ 15 yards² = 19440 inches²

∵ 1 hour = 60 minutes

∴ 30 minutes = 30/60 = 0.5 hour

∴ 4 hours and 30 minutes = 4.5 hours

∴ Fine Floors can install 19440 inches² in 4.5 hours

∵ The dimensions of the room are 11 feet 9 inches by 13 feet 4 inches

∵ 1 foot = 12 inches

∴ 11 feet 9 inches = 11 × 12 + 9 = 141 inches

∴ 13 feet 4 inches = 13 × 12 + 4 = 160 inches

∴ The area of the room = 141 × 160 = 22560 inches²

Now lets use the ratio method to answer the question

⇒ area of carpeting (in²)      :      time of carpeting (hr)

⇒ 19440                                :      4.5

⇒ 22560                               :      h

By using cross multiplication

∴ 19440 h = 4.5 × 22560

∴ 19440 h = 101520

- Divide both sides by 19440

∴ h = 5.22 hrs

It takes 5.22 hours to install carpeting in a room

Learn more:

You can learn more about the rate in brainly.com/question/13053630

#LearnwithBrainly

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<h2>Hello!</h2>

The answers are:

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<h2>Why?</h2>

We are given the perimeter of a rectangular mat, and we are asked to find the area, and write an equation to determine the length, if feet, of the mat. To solve this problem we need to remember the equation of the perimeter of a rectangle, which is:

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Substituting, we have:

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