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bija089 [108]
3 years ago
6

The lengths of the sides of a square are represented by the expression 3x + 1 cm. The perimeter of the square is 28 cm. What is

the value of x
Mathematics
1 answer:
pshichka [43]3 years ago
7 0

Answer:

x=2

Step-by-step explanation:

Perimeter of a square = 4*(side of the square)

28 = 4*(3x+1)

28 = 12x + 4

28- 4 = 12x

24 = 12x

x =2

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Answer:

Given:

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3 years ago
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Describe a real world problem that uses the expression 29 divided by (3/8 + 5/6).
Westkost [7]
<span>29 divided by (3/8 + 5/6) 

24</span>
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Revenue is 3,000,cost of goods is 1,500, selling expense is 500 what is the prophit?
tia_tia [17]
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3 years ago
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Consider a triangle with two sides that
AURORKA [14]

9514 1404 393

Answer:

  C)  14 cm

Step-by-step explanation:

A triangle solver can quickly show you the third side is 14 cm.

__

The law of cosines can be used for this purpose. If the given sides are 'a' and 'b', and the third side is 'c', then that law tells you ...

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8 0
3 years ago
Solve the following inequality. 21&lt;_-3(x - 4) &lt; 30 A. 28&lt;_x &lt; 37 B. -3 &lt;_ x &lt; 6 C. -6 &lt; x &lt;_ -3 D. -10 &
Aloiza [94]

Answer:

Option C -6

Step-by-step explanation:

we have

21\leq -3(x-4)

The compound inequality can be divided into two inequality

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when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

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Rewrite

x\leq -3

The solution of the inequality A is the interval (-∞,-3]

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-3x+12

-3x

Divide by -3 both sides

when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

x>-6

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The solution of the compound inequality is

[-6,∞) ∩ (-∞,-3]=(-6,-3]

-6

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