All categories

2 years ago

The surface area of a cube is 560,000 square centimeters. How many square meters is this?

Mathematics

2 answers:

tresset_1 [31]2 years ago

3 0

Answer:

5,600 m^2

Step-by-step explanation:

a 1cm= 0.01m

560000(0.01)=5600

gizmo_the_mogwai [7]2 years ago

3 0

5,600 m^2 is the answer to your question

You might be interested in

Write the expression in factored form. 81m^2-49

ivolga24 [154]

We can use the difference of two squares, which is:

x^2 + y^2 = (x-y)(x+y)

So,

(9m-7)(9m+7)

Hope this helps!

5 0

3 years ago

The following system of equations is _____.

hoa [83]

The correct answer among the choices listed above is the second option. The following system of equations is equivalent. This is because when written in the same form, one equation will yield to the same equation as the other.

y = -1/3x +2/3

2x + 6y = 4
6y = 4 - 2x
y = 2/3 - 1/3x
y = -1/3x +2/3

3 0

3 years ago

there are 148 juniors and 272 seniors attending prom this year. if there must be three chaperones per 60 students, how many chap

valkas [14]

21 chaperones are needed for 420 students.

Step-by-step explanation:

No. of juniors = 148

No. of seniors = 272

Total = 148+272 = 420 students

3 chaperones = 60 students

1 chaperone = $\frac{60}{3}=20\ students$

Ratio of chaperon to students = 1:20

Let,

x be the number of chaperons for 420 students.

Ration of chaperones to students = x:420

Using proportion

Ratio of chaperones to students :: Ratio of chaperons to students

$1:20::x:420$

Product of mean = Product of extreme

$20*x=420*1\\20x=420\\$

Dividing both sides by 20

$\frac{20x}{20}=\frac{420}{20}\\x=21$

21 chaperones are needed for 420 students.

Keywords: ratio, proportion

Learn more about ratios at:

#LearnwithBrainly

3 0

3 years ago

Suppose the population of a certain city is 3031 thousand. It is expected to decrease to 2246 thousand in 50 years. Find the per

Kipish [7]

Answer:

The rate at which the population decrease is 59.8 %

Step-by-step explanation:

Given as :

The population of city = 30,31,000

Now The population of city decrease to 22,46,000

The time period in which population decrease is 50 years

Let the percentage rate of decrease = R%

So,

Final population = initial population × $(1-\frac{Rate}{100})^{Time}$

Or, 22,46,000 = 30,31,000 × $(1-\frac{Rate}{100})^{50}$

Or, $\frac{2246000}{3031000}$ = $(1-\frac{Rate}{100})^{50}$

Or, $\frac{2246}{3031}$ = $(1-\frac{Rate}{100})^{50}$

$(\frac{2246}{3031})^{\frac{1}{50}}$ = $( 1-\frac{Rate}{100})$

So , 0.99402 = $( 1-\frac{Rate}{100})$

Or, $\frac{Rate}{100}$ = 1 - 0.99402

So, Rate = $5.98\times 10^{-3}$ × 100

Or, Rate = 0.598 = 59.8 %

Hence The rate at which the population decrease is 59.8 % Answer

4 0

3 years ago

B. Write a division equation that represents the question: how many 3/8s are in 5/4?

Aleks04 [339]

Answer:

3/8 * 4/5 = 3/10

Step-by-step explanation:

Keep change flip. If you multiply 3/8 by 4/5 you get 12/40 and if you simplify you get 3/10. 0.3 as a decimal. Hope this helps let e know if correct!!

6 0

2 years ago

Read 2 more answers