1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tiny-mole [99]
2 years ago
12

A weather balloon holds 2,850 cubic meters of helium. The density of helium is 0.1685 kilograms per cubic meter. How many kilogr

ams of helium does the balloon contain? Please round your answer to the nearest whole number. Only enter a numerical value in the answer blank
Mathematics
2 answers:
nekit [7.7K]2 years ago
5 0

Answer:

480

Step-by-step explanation:

Density of a substance is mass per unit volume, Mathematically expressed as

d=m/v

Making m the subject of the formula then

m=dv

Here, d is the density, m is the mass of helium and v is the volume of helium

Given density as 0.1685 kg/m³ and volume as 2850 m³ then jts mass will be equivalent to

Mass=2850m³*0.1685kg/m³=480.225 kg

Rounding off to the nearest whole number, the mass is approximately 480 kg

zaharov [31]2 years ago
5 0

Answer: 480

Explanation: I took the test and this answer was correct.

You might be interested in
Tawni watched 3/4 of a movie in 1 1/2 hours. Which is the length of the movie?
ella [17]

Answer:

2 hours.

Step-by-step explanation:

1 1/2 hours is equal to 90 minutes. We can calculate from this that 1/4 of the movie is equal to 30 minutes. To get the answer, we add the missing 1/4 of the movie (equal to 30 minutes) to get a total of 120 minutes, which is equal to two hours.

Good luck! Hope this helped!

3 0
2 years ago
The high school courtesy club bought red and black ink pens for Teacher Appreciation Day. The club bought 75 pens in all. Each b
dezoksy [38]

Answer:

52

Step-by-step explanation:


8 0
2 years ago
Bob's mom is 3 times older than Bob. In 12 years, Bob's mom's age will be twice of
shusha [124]

I would use a chart to solve this problem.

This is a good wya to organize your information.

Down the left side, list the people involved.

I put Bob first and the mom second but the order doesn't matter.

Since Bob's mom is 3 times older than Bob, we can represent

Bob's age now as x and Bob's mom's age now as 3x.

Bob's age in 12 years will be x + 12 and Bob's mom's

age in 12 years will simply be 3x + 12.

Since the second sentence starts with in 12 years,

we will be using the information from our second column.

In 12 years, Bob's mom's age, 3x + 12, will be,

equals, twice of her son's age, 2(x + 12).

Solving from here, we find that x = 12.

This means that Bob's age now is 12 and his mom is 36.

The chart is attached below.

6 0
3 years ago
Read 2 more answers
When jerry drives 204 miles on the highway, his car uses 6 gallons of gasoline . How much gasoline would his car use if he drive
Luba_88 [7]

Answer:

15

Step-by-step explanation:

6 0
3 years ago
You know 13 + 7 = 20. Therefore 13+ 7 + 2 = 20 + 2
omeli [17]

Answer: if 13+7+2=20+2 the property of equality is  A Subtraction Property of Equality.

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • What are the solutions of the quadratic equation below?
    12·2 answers
  • What is 2x+y=17 in liner equation in slope intercept form?​
    13·1 answer
  • GENEROUS DONATIONS WHO EVER ANSWERS FIRST GETS BRAINLIEST!
    14·2 answers
  • I am so Bored <br> Anyone want to talk I am dying of boredom <br> Also Favorite Color?
    13·2 answers
  • I WILL GIVE BRAINLIEST! Which table of values corresponds to the graph below?
    12·2 answers
  • NEED HELP ASAP PLEASE!!!!!!!!
    9·2 answers
  • 4. Twice the larger of two numbers is three more than five times the smaller. The sum of four times the larger and three times t
    8·1 answer
  • Suppose f(x)= 2 ^ x - 3x and g(x = 1 - 2x. Find each of the following functions. a. (f + g)(x) b. (f- g)(x)
    5·1 answer
  • If for triangle ABC and triangle PQR, the correspondence BCA to QRP is a congruence, which of the following are true.
    7·1 answer
  • Help my friend out?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!