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3 years ago

What is 10% of 100 PLEASE HELP

Mathematics

2 answers:

Jobisdone [24]3 years ago

8 0

First off, we have to divide 100 by 10 to get 10%. That would be ten. So in conclusion, 10% of 100 is 10

stepan [7]3 years ago

3 0

10% of 100 = 10/100 x 100 = 10.
or
10% of 100 = 0.1 x 100= 10.

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Novosadov [1.4K]

Answer:

i think the answer is 5.4

Step-by-step explanation:

5 0

3 years ago

Stephanie has an aquarium that is in the shape of a right rectangular prism, 50 centimetres long, 25 centimetres wide and 30 cen

Bess [88]

To solve this, we are going to use the volume formula for a rectangular prism: $V=lwh$
where
$V$ is the volume of the prism
$l$ is the length of the prism
$w$ is the width of the prism
$h$ is the height of the prism

We are also using the volume of a sphere formula: $V= \frac{4}{3} \pi r^{3}$
where
$V$ is the volume of the sphere
$r$ is the radius of the sphere

Part A: Since she wants a layer of marbles in the bottom of the tank about 5 centimeters deep, the height of this little rectangular prism will be 5 centimeters, so $h=5$ . Since the other measures of our little rectangular prism are the same as the aquarium, $l=50$ and $w=25$ . Lets replace those values in our volume formula:
$V=lwh$
$V=(50)(25)(5)$
$V=6250 cm^{3}$
Now that we know that she wants to cover a volume of 6250 $cm^{3}$ with marbles, lets find the volume of each marble.
We know that the diameter of each marble is 1 cm. Since the radius is of a sphere is half its diameter, $r= \frac{1}{2} =0.5$ . Lets replace that value in our volume formula:
$V= \frac{4}{3} \pi r^{3}$
$V= \frac{4}{3} \pi (0.5)^{3}$
$V=0.52 cm^{3}$
Now, let $x$ the number of marbles she will need to cover a volume of 6250 $cm^{3}$ :
$0.52x=6250$
$x= \frac{6250}{0.52}$
$x=12019.23$
Since we know that each bag of marbles has 500 marbles, we are going to divide the number of marbles she will need by the number of marbles in each bag:
$\frac{12019.23}{500} =24.03$

We can conclude that to fill a layer of 5 cm with marbles, she will need 24 bags of marbles.

Part B: We know that she already have 5 cm of her aquarium filled with marbles, and that she also added water until it’s level is 3 centimeters below the top of the tank, so to find the height of this new rectangular prism, we are going to subtract 5 cm plus 3 cm from the original height of her aquarium:
 $h=30-(5+8)$
$h=30-13$
$h=17cm$
Since the other measures of our little rectangular prism are the same as the aquarium, $l=50$ and $w=25$ . Lets replace those values in our volume formula:
$V=lwh$
$V=(50)(25)(17)$
$V=21250cm^{3}$
Remember that $1litre=1000cm^{3}$ . So:
$(21250cm^3)( \frac{1litre}{1000cm^{3})} =21.25liters$

We can conclude that there are 21.25 liters of water in the tank.

6 0

3 years ago

Given: mHL =40°, mEV =130°, mVL =110°. Find: m∠EYH.

IgorC [24]

Answer:

<h2>The measure of angle EYH is 25°.</h2>

Step-by-step explanation:

Notice that ray EY is a tangent and ray VY is a secant.

In this case, we use the theorem that states "the angle formed by a tangent and a secant is half of the difference of the intercepted arcs".

In this case, the intercepted arcs are EH and EV. We know that a whole arc is 360°, so

$arc(EH)=360-40-110-130=80$

Using the theorem, we have

$m\angle EYH=\frac{1}{2}(arc(EV)-arc(EH))=\frac{1}{2}(130-80)=\frac{1}{2}(50)\\ m \angle EYH = 25\°$

Therefore, the measure of angle EYH is 25°.

7 0

3 years ago

2 x t 5 y = 10 ( solve for y )

Allisa [31]

Answer:

y=1/3

Step-by-step explanation:

30y=10 y=1/3

3 0

3 years ago

Given the function: f(x)=x2−x−12(x+2)(x−5)

ioda

Answer: $x=\frac{35±\sqrt[]{6505} }{22}$

Step-by-step explanation: $x=5.25698091…,−2.07516273…$

The roots ( $zeros$ ) are the $x$ values where the graph intersects the x-axis. To find the roots ( $zeros$ ), replace $y$ with $0$ and solve for $x$ .

7 0

2 years ago