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LenKa [72]
2 years ago
5

Each month, a shopkeeper spends 3x+2 dollars on rent and 7x+4 on electricity. Ahmed claims that the shopkeeper spent a total of

10x+2 on rent and electricity.
Is Ahmed correct?

Justify your answer by showing your work
Mathematics
2 answers:
Ivenika [448]2 years ago
8 0
Nope he’s not

3x + 7x = 10x
2+4= 6
So the answer is 10x + 6 not whatever Ahmed got

icang [17]2 years ago
8 0

Answer:

No. Adding the 2 amounts gives 7x + 6.

Step-by-step explanation:

Adding:

3x + 2 + 7x + 4

= 10x + 6.

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Halla el área de un triángulo equilátero de 54 cm de perímetros
adoni [48]

Answer:

Area of equilateral triangle = 81√3 cm²

Step-by-step explanation:

Given:

Perimeter of an equilateral triangle = 54 cm

Find:

Area of equilateral triangle

Computation:

Perimeter of an equilateral triangle = 3 x Side

54 = 3 x Side

Side of equilateral triangle = 54 / 3

Side of equilateral triangle = 18 cm

Area of equilateral triangle = [√3/4]side²

Area of equilateral triangle = [√3/4][18]²

Area of equilateral triangle = [√3/4][324]

Area of equilateral triangle = [√3][81]

Area of equilateral triangle = 81√3 cm²

5 0
2 years ago
The height of a wooden pole, h, is equal to 15 feet. Ataut wire is stretched from a point on the ground to the top of the pole.
Taya2010 [7]

The question is incomplete. Here is the complete question:

The height of a wooden pole, h, is equal to 15 feet. A taut wire is stretched from a point on the ground to the top of the pole. The  distance from the base of the pole to this point on the ground, b. is equal to 8 feet. What is the length of the wire?

Answer:

Length of wire = 17 feet

Step-by-step explanation:

Given:

The height of the wooden pole is, h=15\ ft

The distance from the base of the pole to this point on the ground is, b=8\ ft

Let the length of the wire be 'l'.

Now, consider the triangle formed by the pole, the base, and the wire. The length of the wire is the slant length and hence the hypotenuse of the triangle.

Using Pythagorean theorem, we can find the hypotenuse.

(Hypotenuse)^2=(height)^2+(base)^2\\l^2=h^2+b^2

Plug in the given values and solve for 'l'. This gives,

l^2=15^2+8^2\\\\l^2=225+64\\\\l^2=289\\\\l=\sqrt{289}\\\\l=\pm17

As length can never be negative, we ignore the negative result.

Therefore, the length of the wire is 17 feet.

7 0
3 years ago
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IgorLugansk [536]

Answer:

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Step-by-step explanation:

At the end of 2 years, your savings will have grown to $5,842.

You will have earned in $642 in interest.

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3 years ago
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Alex777 [14]

Answer: yes is it a function

Step-by-step explanation:

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Answer:

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