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
QveST [7]
3 years ago
15

Beth does not charge a registration fee for her dog-walking service, but she charges $5 per mile that each dog is walked. Tonya’

s dog-walking service charges a registration fee of $20, plus $3 per mile that each dog is walked. Write and solve an equation to find the number of miles m for which Tonya and Beth would charge the same amount.
Mathematics
1 answer:
GuDViN [60]3 years ago
4 0

Answer: 10 miles.

Step-by-step explanation:

Let m the number of miles that each dog is walked.

It is given that Beth does not charge a registration fee for her dog-walking service, but she charges $5 per mile that each dog is walked.

Amount charged by Beth = 5m

Tonya’s dog-walking service charges a registration fee of $20, plus $3 per mile that each dog is walked.

Amount charged by Tonya = 20+3m

We need to find the number of miles m for which Tonya and Beth would charge the same amount.

5m=20+3m

5m-3m=20

2m=20

Divide both sides by 2.

m=10

Therefore, for 10 miles Tonya and Beth would charge the same amount.

You might be interested in
The hypotenuse of a right triangle is 14 centimeters long. One of the legs of the triangle is 6 centimeters. What is the length
BartSMP [9]

Answer: 12.65 cm

Step-by-step explanation:

Use the Pythagoras theorem,

a^2 + b^2= c^2

You are given the hypotenuse , which is c and another leg which is either a or b, does not particularly matter- rearrange to find the missing length

c^2 - b^2 = a^2

14^2 - 6^2 = 160

Square root 160 to find the missing length

12.65

Hope this helped :)

5 0
3 years ago
Ugh Once again I need help please help!
Andrews [41]

Answer:

Ugh Once again I need help please help!

Step-by-step explanation:

Ugh Once again I need help please help!

7 0
2 years ago
Read 2 more answers
It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken if the desir
Ksju [112]

Answer:

We need a sample size of at least 75.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, we find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

The standard deviation is the square root of the variance. So:

\sigma = \sqrt{484} = 22

With a .95 probability, the sample size that needs to be taken if the desired margin of error is 5 or less is

We need a sample size of at least n, in which n is found when M = 5. So

M = z*\frac{\sigma}{\sqrt{n}}

5 = 1.96*\frac{22}{\sqrt{n}}

5\sqrt{n} = 43.12

\sqrt{n} = \frac{43.12}{5}

\sqrt{n} = 8.624

(\sqrt{n})^{2} = (8.624)^{2}

n = 74.4

We need a sample size of at least 75.

6 0
3 years ago
Read 2 more answers
What is the first step in isolating the variable in this equation?
VLD [36.1K]
It’s either subtract 75 from both sides or divide both sides by 1/2 but I’m pretty sure it’s subtract 75 from both sides
6 0
3 years ago
Read 2 more answers
What is the product of (BY*)(274)
gulaghasi [49]

Answer:

i

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • From a standard deck of 54 cards what is the probability of randomly drawing a 5 or queen
    9·1 answer
  • I’ll mark you brainliest!!!!! Which situation shows a constant rate of change?
    6·1 answer
  • Determine the quadratic regression for the data.
    13·2 answers
  • Tonya has a small picture with a length 4 1/5 of inches. She wants to enlarge the picture by a factor of 7 and frame it. Which o
    12·1 answer
  • What is 71,781 divided by 8​
    13·1 answer
  • A ladder, 14 feet long, is leaning against
    9·2 answers
  • Whoever answers correctly gets brainliest.
    8·1 answer
  • What is the product?<br><br> (x − 3)(2x2 − 5x + 1)
    8·1 answer
  • How many yards are in 1 mile 300 feet
    10·2 answers
  • An airplane 30,000 feet above the ground
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!