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
vfiekz [6]
3 years ago
12

For the past three months Grace used her cell phone for 43 minutes 62 minutes and 57 minutes how many minutes would you have to

use her cell phone this month for the average usage over the four months to be 55 minutes
Mathematics
1 answer:
RSB [31]3 years ago
5 0

Answer:

Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

Step-by-step explanation:

Usage of first month = 43 minutes

Second month = 62 minutes

Third Minutes = 57 minutes

Let, the usage of fourth month =  k minutes

Mean of the data = 5 minutes

Now, Average of a Data =  \frac{\textrm{Sumof observations}}{\textrm{Total number of observations}}

⇒55 = \frac{43 + 62 + 57 + k}{4}

or, 55  x 4 = 162 + k

⇒    220 - 162  = k

or, k = 58 minutes

So, Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

You might be interested in
What is 1/3 •1/3 in exponential notation
Zigmanuir [339]

Answer:

Step-by-step explanation:

1/3 x 1/3 in exponential notation is 1/3². you are multiplying a number by itself so its squared, ig you are multiplying a number by itself three times, then its cubed, with a 3.

6 0
3 years ago
The figure shows a line graph and two shaded triangles that are similar:
BaLLatris [955]

Answer:

Answer is B

just do your work and proof the work and that will give u the right answer

4 0
3 years ago
Read 2 more answers
The Delucci family traveled on the highway for two hours at 70 miles per hour, and then three hours at 35 miles per hour. How fa
Zinaida [17]
(2 * 70) + (3 * 35) = 140 + 105 = 245 miles
6 0
3 years ago
Marcus had a debt of $120 on his credit card. He made a payment to the account, leaving $47 of debt remaining. What integer best
Lostsunrise [7]

Answer:

73

Step-by-step explanation:

120-47=73 simple math

5 0
3 years ago
What do you need to know?
bulgar [2K]

wym are you asking a question?

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 8+4(-6x+4)=-6-5x
    7·2 answers
  • The midpoint of is (14, 26). One endpoint of is A(32, 40). What are the coordinates of B?
    9·1 answer
  • Simplify (x + 2/ x^2 + 2x -3) / (x + 2/x^2 - x)
    15·2 answers
  • What is the midpoint segment with endpoints j(-3,-2),K(4,-6)?
    11·1 answer
  • Five times the sum of a number and 6 is 48
    10·1 answer
  • If 3/10 = 30/100 than 4/10 = ?/100
    8·2 answers
  • Help me plzz thank you and u don't need to solve it all the way I just need the answer
    10·2 answers
  • (3х – 6)(2x+2)<br><br> simplify by multiplying
    6·2 answers
  • In a group of 250 music lovers, 135 of them like folk songs and 150 like modem
    13·1 answer
  • Solve the inequality and graph the solution on the line provided. -20+5x &gt;5
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!