All categories

1 year ago

A survey of favorite movie types found that 36% of people polled preferred comedies instead of action movies. if

Mathematics

1 answer:

Wittaler [7]1 year ago

7 0

Answer:

Step-by-step explanation:

The answer is greater than 450 because the percentage is less than 100%

36% = 36/100 = 0.36

450/0.36 = 1250

how many people were surveyed?:

1250

You might be interested in

HELPPPPP MEEEE PLZZZ

olga55 [171]

Answer:

Step-by-step explanation:

if a<b,then b<a is the answer

7 0

2 years ago

Write The decimal as a percent .065

grigory [225]

Answer:

6.5

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A vertical cylinder is leaking water at a rate of 4m3/sec. If the cylinder has a height of 10m and a radius of 2m, at what rate

Lyrx [107]

Answer:

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

Step-by-step explanation:

Given that a vertical cylinder is leaking water at rate of 4 m³/s.

It means the rate change of volume is 4 m³/s.

$\frac{dV}{dt}=4 \ m^3/s$

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is $V=\pi r^2 h$

$=( \pi \times 2^2\times h)\ m^3$

$\therefore V= 4\pi h$

Differentiating with respect to t.

$\frac{dV}{dt}=4\pi \frac{dh}{dt}$

Putting the value $\frac{dV}{dt}$

$\Rightarrow 4\pi \frac{dh}{dt}=4$

$\Rightarrow \frac{dh}{dt}=\frac{4}{4\pi}$

$\Rightarrow \frac{dh}{dt}=\frac{1}{\pi}$

The rate change of height does not depend on the height.

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

3 0

2 years ago

A shark swims at a rate of 18 feet per second while chasing his prey and then slows down to a rate of 7 feet per second. The sha

solong [7]

The answer would be, B

7 0

3 years ago

Find the surface area of a cylinder that has a raius of 13.5 cm., and a height of 90 cm. Show all work without using a calculato

professor190 [17]

$\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=13.5\\ h=90 \end{cases}\implies SA=2\pi (13.5)(90+13.5) \\\\\\ SA=27\pi (103.5)\implies SA=2794.5\pi \implies SA\approx 8779.18$

well, the last part will be with a calculator, but you can simply use the area in π terms.

3 0

3 years ago