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
balandron [24]
3 years ago
13

the amount of gasoline used by a car varies jointly as the distance travelled and the square root of the speed.Suppose a car use

d 25 liters on a 100 km trip at 100kph,about how many liters will it use on 1000 km trip at 64 kph?​
Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer:

200 litres

Step-by-step explanation:

let g be gasoline used, d the distance travelled and s the speed, then the equation relating the quantities is

g = kd\sqrt{s} ← k is the constant of variation

To find k use g = 25, d = 100 and s = 100, then

25 = k × 100 × \sqrt{100} = k × 100 × 10 = 1000k ( divide both sides by 1000 )

0.025 = k

g = 0.025d\sqrt{s} ← equation of variation

When d = 1000 and s = 64, then

g = 0.025 × 1000 × \sqrt{64} = 0.025 × 1000 × 8 = 200

You might be interested in
Simplify the expression. 3–9 • 36 • 36
DIA [1.3K]

Step-by-step explanation:

3 - (9 \times 36 \times 36)

3 - (324 \times 36)

3 - (11664)

= (11661)

8 0
3 years ago
Solve for x 14 -2x = \frac{3 + x}{2}
Stels [109]
I think x = 2 is the answer
6 0
3 years ago
What the value of r that makes the value true? r+(-0.14)=0.47
siniylev [52]

r+(-0.14)=0.47\\\\r-0.14=0.47\qquad|\text{add 0.14 to both sides}\\\\r-0.14+0.14=0.47+0.14\\\\r=0.61

4 0
3 years ago
Evaluate the factorial.<br> 11!
Dafna11 [192]

Answer:

The factorial of 11! is exactly 39916800

The number of trailing 0s in 11! is 2

The number of digits in 11 factorial is 8.

The factorial of 11 is calculated as below:

11! = 11 • 10 • 9 • 8 • 7 ... 3 • 2 • 1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What solid figure is this
amid [387]

Answer: Trapezoidal prism

A figure with 4 sides and a parallel side is called a trapezoid, this is a 3 dimentional trapezoid which is called a trapezoidal prism.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Drag an expression to the box to create an equation with no solutions.
    7·1 answer
  • What is the purpose of the robot mice in “There Will Come Soft Rains”? A. to entertain the family's cat B. to clean the floors o
    7·2 answers
  • Maribel surveyed 55 people to find out their favorite types of music. The results are shown in the bar graph. Based on the infor
    11·1 answer
  • What is the question to b(x)=3x-1.
    8·2 answers
  • Two identical point charges are initially 5.3 cm from each other. If they are released at the same instant from rest, how fast w
    6·1 answer
  • Round answer to the nearest hundredth. thanks ​
    9·1 answer
  • QUICK HELP ME DUE IN 3 MINUTES 123456789x123456789
    8·2 answers
  • Anita deposits $800 into both of the accounts described in the table.
    5·1 answer
  • C) What is the equation of line a? (2 points)
    12·1 answer
  • What is the vertical shift for the following transformed tan function? Input the numerical answer.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!