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3 years ago

Solve 3-** The solution is k=

Mathematics

2 answers:

kiruha [24]3 years ago

7 0

Answer: K= 8/3 or 2 2/3

Step-by-step explanation:

SpyIntel [72]3 years ago

5 0

Answer:

$k = \frac{8}{3} = 2\frac{2}{3}$

Step-by-step explanation:

$k\frac{1}{4} = \frac{2}{3}$

Let's do a simple equation from here on.

Divide by 1/4 on both sides:

$k = \frac{2}{3} / \frac{1}{4} = \frac{2}{3} * \frac{4}{1} = \frac{8}{3}$

$k = \frac{8}{3} = 2\frac{2}{3}$

Hope i could help you understand! If you still don't understand, feel free to ask in the comments below!

Have a nice day! (●'◡'●)

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At Billy's school, 80 students come to school by bicycle or by car. Together, the vehicles they arrive to school in have 270 whe

Anna35 [415]

Answer:

x = number of bicycles = 35

y = number of cars = 55

Step-by-step explanation:

Let

x = number of bicycles

y = number of cars

x + y = 80 (1)

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From (1)

x = 80 - y

Substitute x = 80 - y into (2)

2x + 4y = 270 (2)

2(80 - y) + 4y = 270

160 - 2y + 4y = 270

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Substitute y = 55 into (1)

x + y = 80 (1)

x + 55 = 80

x = 80 - 55

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3 years ago

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:

$C.S.A = \pi rl$

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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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