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
miv72 [106K]
3 years ago
13

Josiah has a mass of 75 kg and wants to know how many helium-filled balloons it would take to fly. The density of helium is abou

t 1 kg/m^3 less than regular air, which means a cubic meter of helium can lift about 1 kg. Fully inflated, a balloon has a diameter of 0.3 m and can be modeled as a sphere. He neglects the mass of the balloon in his calculations.
About how many balloons would it take to lift Josiah?
A. 660 Balloons
B. 1120 Balloons
C. 4750 Balloons
D. 5310 Balloons
Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

d-5310

Step-by-step explanation:

You might be interested in
what is the answer to this question. please respond. I need the answer very quick.my teacher is going to get mad at me
amm1812

It is a ratio problem...

2 dogs need 144 feet = 2 : 144

Simplify the ratio = 1 : 72

Multiply both sides by 8 (8 dogs) = 1*8 :144*8

Simplify the ratio = 8 : 1152

8 dogs need 1152 feet of fencing

Hope this helps!

3 0
3 years ago
Need help with this one will mark brainliest
const2013 [10]
1,-7 would be the answer I believe
7 0
3 years ago
Read 2 more answers
Factorise<br>3(m-4)+b(4-m)​
Maurinko [17]

Answer:

-(m-4)(b-3)

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping

8 0
3 years ago
Read 2 more answers
Which equation can be used to solve for x in the following diagram?<br> 7xº<br> 11x°
telo118 [61]

Answer:

7x° + 11x° = 90°

(Required equation)

Step-by-step explanation:

7x° + 11x° = 90°

(complementary angles)

18x° = 90°

18x = 90

x = 90/18

x = 5

8 0
3 years ago
Zykia bought a riding lawnmower for 1,270 on the installment plan. She paid a down payment of $60 and agreed to pay $80 a month
pshichka [43]

Answer:

1,500

Hope this helps

3 0
3 years ago
Other questions:
  • A developer wants to develop a 25-acre subdivision. He figures that the streets and common area will take up about 35% of this o
    10·1 answer
  • What is the constant of proportionality in the equation y = 2/3x?
    7·1 answer
  • I need to know about the gradient
    5·1 answer
  • Compute the slope of the line below. Enter your answer as a fraction or
    5·1 answer
  • PLEASE!! For 22 points!!
    9·1 answer
  • You observe the heights of two plants for an experiment. Plant A has a height of 8 centimeters and grows 1 centimeter each week.
    8·1 answer
  • Rewrite 17.9 divided by 2.38 said that the divisor is a whole number​
    14·1 answer
  • Solve for z. u=vw+z.
    9·1 answer
  • Can someone please help me And thank youu
    13·1 answer
  • Using square ABCD, calculate the measure of ZEDC, if mZECD = 45°.<br> =
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!