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3 years ago

If it takes 4 men 6hours to repair a road, how long will it take 7 men to do the job if they work at the same rate.

1 answer:

Crank3 years ago

4 0

Tricky question. This isn't a ratio question even though it seems like one.

First divide 7 by 4.
$7 \div 4 = 1.75$

With more men, the hours taken to repair a road will be even shorter.

So next divide 6 by 1.75.
$6 \div 1.75 = 3.43$

Answer : It'll take 3.43 hours to do the job if they work at the same rate.

Hope this helps. - M

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A circus tent is cylindrical upto a height of 3.3 m and conical above it if the diameter of the base is 100m and slant height of

Rina8888 [55]

Total cost of canvas required in making the tent is rupees 79128

Solution:

Given:

Height of the cylindrical tent = h = 3.3 m

Diameter of it's base = d = 100m

$radius = \frac{diameter}{2} = \frac{100}{2} = 50$

r = 50 m

Curved surface area of cylinder:

$C.S.A = 2 \pi rh$

$C.S.A = 2 \times 3.14 \times 50 \times 3.3 = 1036.2$

Thus Curved surface area of cylinder = 1036.2 square meter

Curved surface area of cone:

$C.S.A = \pi rl$

$C.S.A = 3.14 \times 50 \times 56.4 = 8854.8$

Thus Curved surface area of cone = 8854.8 square meter

Total curved area of tent:

⇒ curved area of cone + curved area of cylinder

$\rightarrow 8854.8 + 1036.2=9891$

Thus total curved area of tent = 9891 square meter

find total cost of canvas required in making the tent:

The cost of canvas is 8 rupees per square meter

$\rightarrow \text{total cost } = 9891 \times 8 = 79128$

Thus total cost of canvas required in making the tent is rupees 79128

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2 years ago

5 ideas how to reduce food waste zero hunger.

aliya0001 [1]

Answer:

Plan meals ahead. In the home, one of the best ways to reduce food waste is to plan meals ahead. ...

Rotate time-sensitive foods in the fridge and cupboards. ...

Freeze surplus garden vegetables. ...

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Compost kitchen waste.

Step-by-step explanation:

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3 years ago

A rain gutter is to be constructed of aluminum sheets 12 inches wide. After marking off a length of 4 inches from each edge, thi

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We are given a rain gutter made from folding a 12 inch wide aluminum sheet to an angle theta. The area of the opening is expressed as A(Θ) = 16 sin Θ (cos Θ + 1) where Θ = 45°. we can just substitute directly the angle in degrees mode in the calculator and the answer is equal to 19.32 inches2.

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3 years ago

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Do the political leanings of a network affect the news they report? During the the 2018-2019 Government shutdown, a left-leaning

daser333 [38]

Answer:

504

Step-by-step explanation:

We are solving for the left leaning poll

Total voters = 900 + 1100

= 2000

Number of voters who say trump was responsible = 56percent x 2000

= 1120

Number of those who say otherwise = 44% x 2000

= 880

For this network

Those who say trump is responsible = 1120 x900/2000

= 1008000/2000

= 504 registered voters

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3 years ago

Peter plans to build a tree house in his back yard. He needs to know how many square feet of lumber he should buy for the floor.

11Alexandr11 [23.1K]

Answer:

20n

Step-by-step explanation:

Multiply square feet per person times the number of persons to find square feet.

The units analysis looks like this:

$\dfrac{\text{ft}^2}{\text{person}}\times \text{persons}=\text{ft}^2\\\\20\dfrac{\text{ft}^2}{\text{person}}\times n\,\text{persons}=20n\,\text{ft}^2$

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2 years ago

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