Solve for z <br> W=X+Xyz for x

Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Tems11 [23]

Answer and explanation:

To find : Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Solution :

The area of the square is given by,

$A=s^2$ where s is the side length.

We know, $1 \text{ hectare}=10,000\ m^2$

1) The area of square plot is 7 hectare.

Area in meter square is $A=7\times 10000=70000\ m^2$

Substitute the value in the formula,

$70000=s^2$

$\sqrt{70000}=s$

$264.57=s$

Side nearest to 1/10th meter is 264.8 meter.

2) The area of square plot is 12 hectare.

Area in meter square is $A=12\times 10000=120000\ m^2$

Substitute the value in the formula,

$120000=s^2$

$\sqrt{120000}=s$

$346.41=s$

Side nearest to 1/10th meter is 346.4 meter.

3) The area of square plot is 30 hectare.

Area in meter square is $A=30\times 10000=300000\ m^2$

Substitute the value in the formula,

$300000=s^2$

$\sqrt{300000}=s$

$547.72=s$

Side nearest to 1/10th meter is 547.7 meter.

5 0

3 years ago

Nonzero multiples of 16

Anna11 [10]

2 just 2 thats it♥♥

8 0

4 years ago

It takes printer A 4 more minutes than printer B to print 40 pages. If working together, the two printers can print 50 pages in

Anastaziya [24]

Answer:

It will take printer A 24 minutes to print 80 pages.

Step-by-step explanation:

It takes printer A 4 more minutes than printer B to print 40 pages.

Let the time it takes printer B be x minutes, since printer A prints at 4 minutes more, it prints at (x + 4) minutes.

Printer A prints at the rate of (40/(x+4)) pages per minute.

Printer B prints at the rate of (40/x) pages per minute.

If working together, the two printers can print 50 pages in 6 minutes

They can print at the rate of 50 pages per 6 minutes, if working together.

Let us add these ratios, the

40/(x + 4) + 40/x = 50/6

Divide by 40

1/(x + 4) + 1/x = 5/24

(x + x + 4)/x(x + 4) = 5/24

2x + 4 = (5/24)(x² + 4x)

48x + 96 = 5x² + 20x

5x² - 28x - 96 = 0

Solving this using the quadratic formula,

x = [-b ± √(b² - 4ac)]/2a

a = 5, b = -28, and c = -96

x = [28 ± √(784 + 1920)]/10

= 28/10 ± √(2704)/10

= 28/10 ± 52/10

x = (28+52)/10 = 80/10 = 8

Or

x = (28 - 52)/10 = -24/10 = -2.4

So, x is either 8 or -2.4

Since we are dealing with time, the realistic value is the positive value, x = 8, then we choose x = 8 minutes.

It takes printer A (x + 4) minutes to print 40 pages.

x + 4 = 12 minutes.

So, it takes it 12 minutes to print 40 pages.

Easily, it will take it twice as much time to print 80 pages.

So, it will take it 24 minutes to print 80 pages.

5 0

3 years ago

Which expressions are equal to 105?

tester [92]

Answer:

7 becuz boonk gang

Step-by-step explanation:

please give me a thank you i love you bae

3 0

3 years ago

I forgot how to do this please help!!!

pogonyaev

Set up a proportion.

x 5
- = -
5.6 4

4x = 5(5.6)
4x = 28
4x 28
- = -
4 4
x = 7.

Did that help?

7 0

3 years ago

Solve for z W=X+Xyz for x