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3 years ago

PLEASE HELP WITH STEP BY STEP I NEED TO SHOW MY WORK I GO BACK TO CLASS IN 6 MINS

Mathematics

2 answers:

LekaFEV [45]3 years ago

8 0

Answer:

4920

Step-by-step explanation:

=(8×600)+(8×10)+(8×5)

=(4800)+(80)+(40)

=4920

eduard3 years ago

6 0

8 x 615 is 4920.

615
x. 8

______

put a 4 above the one and a 1 above the 6.

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REWARDING BRAINLY TO CORRECT ANSWER

alexandr402 [8]

Answer:

Step-by-step explanation:

20, 22, 23, 23, 26, 27, 34

175/7=25

175+x/8=27

175+x=216

x= 41

8 0

3 years ago

Read 2 more answers

What is the approximate volume of a cylinder with a height of 2 ft and a radius of 6 ft? Use 3.14 to approximate pi. Express you

Keith_Richards [23]

Your answer would be an almighty

0 jk

It would be 226.08ft^3

8 0

3 years ago

Please I really need help!Please show your work :)

Anettt [7]

Answer:

50 stars

Step-by-step explanation:

1 × 50 is 50 so you get 50 stars

8 0

4 years ago

A piece of wire of length 5050 is cut, and the resulting two pieces are formed to make a circle and a square. Where should the

algol [13]

Answer:

x should be cut at 2221.5 to minimize the total combined area, and at 5050 to maximize it.

Step-by-step explanation:

Let x be the length of wire that is cut to form a circle within the 5050 wire, so 5050 - x would be the length to form a square.

A circle with perimeter of x would have a radius of x/(2π), and its area would be

$A_c = \pir^2 = \pi (\frac{x}{2pi})^2 = \frac{x^2}{4\pi}$

A square with perimeter of 5050 - x would have side length of (5050 - x)/4, and its area would be

$A_s = (\frac{5050 - x}{4})^2 = \frac{(5050 - x)^2}{16}$

The total combined area of the square and circles is

$\sum A = A_c + A_s = \frac{x^2}{4\pi} + \frac{(5050 - x)^2}{16}$

To find the maximum and minimum of this, we just take the 1st derivative, and set it to 0

$A' = \frac{2x}{4\pi} + \frac{-2(5050-x)}{16} = 0$

$\frac{x}{2\pi} - \frac{5050 - x}{8} = 0$

Multiple both sides by 8π and we have

$4x - 5050\pi + x\pi = 0$

$x(4 + \pi) = 5050\pi$

$x = \frac{5050\pi}{4 + \pi} = 2221.5$

At x = 2221.5:

$A = \frac{x^2}{4\pi} + \frac{(5050 - x)^2}{16}$ = 392720 + 500026 = 892746 [/tex]

At x = 0, $A = 5050^2/16 = 1593906$

At x = 5050, $A = \frac{5050^2}{4\pi} = 2029424$

As 892746 < 1593906 < 2029424, x should be cut at 2221.5 to minimize the total combined area, and at 5050 to maximize it.

3 0

3 years ago

Please do number 23.

liraira [26]

Answer:

165

Step-by-step explanation:

Let o and b represent the numbers of orchestra and balcony tickets bought, respectively.

o + b ≥ 250 . . . . at least 250 tickets will be bought

o = b - 80 . . . . . there will be 80 fewer orchestra than balcony bought

Substituting for o, we have ...

(b -80) +b ≥ 250

2b ≥ 330 . . . . . . . add 80

b ≥ 165 . . . . . . . . .divide by 2

The least number of balcony tickets the club could buy is 165.

5 0

4 years ago