MATHEMATICS COLLEGE

Karen earns $54.60 for working 6 hours. If the amount she earns varies directly with thenumber of hours she works, how many hours would she need to work to earn an
additional $260?

Answers

Answer 1
Answer:

Given:

Karen earns $54.60 for working 6 hours.

Amount she earns varies directly with the  number of hours she works.

She need to work to earn an  additional $260.

To find:

Number of hours she need to work to earn an  additional $260.

Solution:

Let the amount of earnings be A and number of hours be t.

According to question,

A\propto t

A=kt     ...(i)

where, k is constant of proportionality.

Karen earns $54.60 for working 6 hours.

54.60=k(6)

Divide both sides by 6.

(54.60)/(6)=k

9.1=k

Put k=9.1 in (i).

A=9.1t

Substitute A=260 in the above equation.

260=9.1t

Divide both sides by 9.1.

(260)/(9.1)=t

28.5714=t

t\approx 29

Therefore, she need to work extra about 29 hours to earn an  additional $260.

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Answers

The surface area of the square pyramid represented by the net is 175 cm².

Given is a net of the square pyramid.

A square pyramid has the base of the pyramid being the square and four triangular lateral faces.

Given that,

An unfolded square base pyramid with sides of the base being seven centimeters and the length from the base to the tip is nine centimeters.

Base length, a = 7 cm

Slant height of the pyramid, l = 9 cm

Surface area = a² + 2al

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                     = 49 + 126

                     = 175 cm²

Learn more about Surface Area here :

brainly.com/question/29298005

#SPJ2
Area of the base = 7 x 7 = 49 cm²

Area of the 4 triangles = 4 x [ 1/2 x 7 x 9]
Area of the 4 triangles = 4 x 31.5
Area of the 4 triangles = 126 cm²

Total Surface Area = 49 + 126 = 175 cm²

Answer: Total Surface Area = 175 cm²

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Answers

9514 1404 393

Answer:

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Step-by-step explanation:

The volume formula is ...

  V = (1/3)Bh

where B is the base area and h is the height.

Filling in the given values, we can solve for h.

  351 m³ = (1/3)(81 m²)h

  351/27 m = h = 13 m . . . . . divide by the coefficient of h

The height of the pyramid is 13 meters.

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Answers

Answer:

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Step-by-step explanation:

Tyrone-13

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fill in the equation

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63

Answer:

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I hope this helps

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:
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