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
klemol [59]
3 years ago
14

Setup a rational equation and solve it from the word problem. Mr. Solberg can ride his scooter 3 miles against the wind in the s

ame time it takes him to scooter 4 miles with the wind. If the speed of the wind is 5 mile per hour, how fast does Mr. Solberg scooter when there is no wind?
Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0

Answer:

The speed of Mr Solberg's scooter when there is no wind is 35 miles per hour

Step-by-step explanation:

The given parameters are;

The time Mr. Solberg rides his scooter and cover 3 miles against the wind = The time Mr. Solberg rides his scooter and cover 4 miles with the wind

The speed of the wind = 5 miles per hour

Let v, represent the speed of Mr Solberg's scooter when there is no wind, we have;

Time = Distance/Speed

Mr Solberg's speed against the wind = v - 5

Mr Solberg's speed with the wind = v + 5

The distance covered at a given time, while riding against the wind = 3 miles

The distance covered at the same time, while riding with the wind = 4 miles

The time in both instances are therefore 3/(v - 5) = 4/(v + 5)

From which we have;

3 × (v + 5) = 4 × (v - 5)

3·v + 15 = 4·v - 20

20 + 15 = 4·v - 3·v

4·v - 3·v = 20 + 15

v = 35

The speed of Mr Solberg's scooter when there is no wind = v = 35 miles per hour.

You might be interested in
sandy is cutting bows out of ribbon which will be used to rap gifts. If sandy need 9/7 feet of ribbon to make a bow and she has
Katarina [22]
Sandy can make 14 bows
3 0
2 years ago
Please help i have no idea with this lesson
sergey [27]

Answer:

40

Step-by-step explanation:

ABD-CBD=ABD

70-30=40

3 0
3 years ago
Read 2 more answers
Why is every prime number greater than 2 an odd number?
Arlecino [84]
Because if it was even, then it would be divisble by 2 which makes it not prime
4 0
3 years ago
Read 2 more answers
A drug company is testing a new drag which is supported to reduce blood pressure. From the nine people who are used as subjects,
Pie

Answer:

The 95% confidence interval for the mean change in blood pressure, \bar{x}, is 1.744 < \bar{x} < 2.816

Step-by-step explanation:

The parameters given are;

The number of people in the sample, n = 9

The average drop in blood pressure, \bar{x} = 2.28 points

The standard deviation, σ = 0.82

The confidence level = 95%

The formula for confidence interval with a known mean is given as follows;

CI=\bar{x}\pm z_{\alpha/2} \dfrac{\sigma}{\sqrt{n}}

Where:

z_{\alpha/2} = z - score at 95% confidence level = 1.96

We therefore have;

CI=2.28 \pm 1.96 \times \dfrac{0.82}{\sqrt{9}}

Which gives the 95% confidence interval for the mean change in pressure, \bar{x}, is given as follows;

1.744 < \bar{x} < 2.816

6 0
3 years ago
How do you write fifty-two thousand, five hundred fifty-two in number form
vovikov84 [41]

Answer:

52,552

Step-by-step explanation:

sorry about my old answer i clicked the wrong number

3 0
3 years ago
Read 2 more answers
Other questions:
  • If m1 + m3 = 154°, what is m2
    7·1 answer
  • What is 56 1/4 %= I'm having a hard time with this one
    8·1 answer
  • A trapezoid has bases that measure 9 cm and 5 cm. The height of the figure is 4 cm . What is the area of the trapezoid ?
    10·2 answers
  • Jerry was comparing the points the bulls socered for different games he recorded 85,85, 86,77, 93 determine the mean median mode
    15·1 answer
  • What is the length of a rectangular table that is 18 sq ft and the width is 3 feet
    7·2 answers
  • Nyla writes 1/4 of a page and 1/8 of a minute. how much time does it take her to write a full page ? answer
    8·1 answer
  • The temperature was -3º C last night. It is now -4º C. What was the change in temperature?
    8·2 answers
  • Which expression is equivalent to 4x2−(8x−4x2)+5+(4x−10)?
    7·2 answers
  • 4 1/2 ​ ÷(−1 3/7​ ) please help and hurry
    9·2 answers
  • Simplify: 2z^8+ 7z^8
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!