All categories

2 years ago

If a crate contains 25,500 ounces of rice , about how many kilograms does it contain?

1 answer:

6 0

Well, we know there are 16oz in 1lb, and we know there are 2.2lbs in 1Kg, so

$\bf 25500~\underline{oz}\cdot \cfrac{1~\underline{lb}}{16~\underline{oz}}\cdot \cfrac{1kg}{2.2~\underline{lb}}\implies \cfrac{25500\cdot 1\cdot 1~kg}{16\cdot 2.2}\qquad \approx \qquad 724.43\overline{18}~kg$

You might be interested in

Solve the equations for all values of x by completing the square x^2+62=-16x

lorasvet [3.4K]

Answer:

$x = \sqrt{2} - 8\\x = -\sqrt{2} - 8$

Step-by-step explanation:

To complete the square, we first have to get our equation into $ax^2 + bx = c$ form.

First we add 16x to both sides:

$x^2 + 16x + 62 = 0$

And now we subtract 62 from both sides.

$x^2 + 16x = -62$

We now have to add $(\frac{b}{2})^2$ to both sides of the equation. b is 16, so this value becomes $(16\div2)^2 = 8^2 = 64$ .

$x^2 + 16x + 64 = -62+64$

We can now write the left side of the equation as a perfect square. We know that x+8 will be the solution because $8\cdot8=64$ and $8+8=16$ .

$(x+8)^2 = -62 + 64$

We can now take the square root of both sides.

$x+8 = \sqrt{-62+64}\\\\ x+8 = \pm \sqrt{2}$

We can now isolate x on one side by subtracting 8 from both sides.

$x = \pm\sqrt{2} - 8$

So our solutions are

$x = \sqrt{2} - 8\\x = -\sqrt{2} - 8$

Hope this helped!

4 0

2 years ago

The longer base of an isosceles trapezoid measures 22 ft. The nonparallel sides measure 8 ft, and the base angles measure 75°. F

Mamont248 [21]

Check the picture below

and recall that

$\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad
cos(\theta)=\cfrac{adjacent}{hypotenuse}\\\\
-------------------------------\\\\
sin(75^o)=\cfrac{y}{8}\implies 8sin(75^o)=y
\\\\\\
cos(75^o)=\cfrac{x}{8}\implies 8cos(75^o)=x$

4 0

3 years ago

Read 2 more answers

A game Room has a floor that is 120ft by 75ft. A scale drawing of the floor on grid paper uses a scale of one unit : 5 feet. Wha

nika2105 [10]

24 units by 15 units. divide both numbers by 5

5 0

3 years ago

How many 2/3 are in 3 1/3

NeTakaya

Answer: 5

Step-by-step explanation: baddabing baddaboom

8 0

3 years ago

Can some one give me this answer

iris [78.8K]

Check picture below, solve for "x" and "y"

unless you've already covered the 30-60-90 triangle, then check your book on them, to see the ratios, using the 30-60-90 ratios is simpler

3 0

3 years ago