All categories

2 years ago

George weighed 180 pounds in January. Now he weighs 150 pounds? What percent has he lost?

Mathematics

1 answer:

aalyn [17]2 years ago

6 0

Answer: 0.166666667 or 17%

Reasoning: During that time he lost a total of 30 pounds! Meaning we will divide 30 by 180...

30/180=0.166666667

You might be interested in

What is the probability of getting a odd number when you roll a dice

Alexxx [7]

Answer:

50% (1/2)

Step-by-step explanation:

3 of the 6 sides that exist on a dice have odd numbers.

8 0

3 years ago

Read 2 more answers

The area of a

natali 33 [55]

area=l×w

l=area/w

l=105/5

l=15

perimater=l+w

perimater=15+7

perimeter=22

4 0

1 year ago

3:9 in simpliest form

Softa [21]

Answer:

1:3

Step-by-step explanation:

3 divide 3 1

9 divide 3 3

5 0

2 years ago

Read 2 more answers

Susan rolled a die 642 times. Which of the following would be a good estimate of the number of times she rolled the number 3 on

Zanzabum

Answer:

Step-by-step explanation:

Becasue a di has 6 sides so you would just divide 642 by 6

6 0

2 years ago

Among all right circular cones with a slant height of 24, what are the dimensions (radius and height) that maximize the volum

aleksklad [387]

Answer:

5571.99

Step-by-step explanation:

We need to use the Pythagorean theorem to solve the problem.

The theorem indicates that,

$r^2+h^2=24^2 \\r^2+h^2=576\\r^2=576-h^2$

Once this is defined, we proceed to define the volume of a cone,

$v=\frac{1}{3}\pi r^2 h$

Substituting,

$v=\frac{1}{3} \pi (576-h^2)h\\v=\frac{1}{3} \pi (576h-h^3)$

We need to find the maximum height, so we proceed to calculate h, by means of its derivative and equalizing 0,

$\frac{dv}{dh} = \frac{1}{3} \pi (576-3h^2)$

$\frac{dv}{dh} = 0$ then $\rightarrow \frac{1}{3}\pi(576-3h^2)=0$

$h_1=-8\sqrt{3}\\h_2=8\sqrt{3}$

We select the positiv value.

We have then,

$r^2 = 576-(8\sqrt3)^2 = 384\\r=\sqrt{384}$

We can now calculate the maximum volume,

$V_{max}= \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (\sqrt{384})^2 (8\sqrt{3}) = 5571.99$

4 0

2 years ago