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
Mrac [35]
3 years ago
15

the modes of a 7 set of numbers is m and n. the average is 18. three of the 7 numbers are 2m-3, m+12, and 3n+2. what is the valu

e of (m+n)
Mathematics
1 answer:
Triss [41]3 years ago
8 0

Answer:

m+n=23

Step-by-step explanation:

the modes m and n have to be data points more than 1 time, but equal

if there are 7 data points, then there are 4 unknown left/2 2 each

(2m-3+m+12+3n+2+m+m+n+n)/7=18

(3m+9+3n+2+m+m+n+n)/7=18

(5m+5n+11)/7=18

(5/7)*m+(5/7)*n+11/7=126/7

(5/7)*m+(5/7)*n=115/7

5m+5n=115

m+n=115/5

m+n=23

You might be interested in
What is the answer <br> -48&gt;6x =
tresset_1 [31]
If you solve for x the answer is x<-8
7 0
3 years ago
Read 2 more answers
Safia opens a new savings account with a 2.25% simple interest rate. She deposits $3,500 and earned $3,696.88 total (with intere
Art [367]

Answer:

The money was left untouched for 2 years and 6 months or just 2.5 years

Step-by-step explanation:

In this question, we are asked to calculate the time taken for an amount deposited to earn a certain amount of interest.

Mathematically, simple interest can be calculated using the formula;

I = PRT/100

where I is the interest accrued which is 3696.88 - 3,500 = 196.88

P is the principal which is the amount deposited = 3,500 according to the question

R is the rate which is 2.25% according to the question

T is the time which we are to find

we can rearrange the formula making T the subject and we obtain the following;

T = 100I/PR

substituting the values listed above we have;

T = (100 * 196.88)/(3500 * 2.25)

T = 19688/7875

T = 2.5 years or 2 years 6 months

8 0
3 years ago
Deepak wrote out the steps to his solution of the equation – 3x – 5 + 4x = –.
MrMuchimi
X=5 if that's what you were asking for
3 0
3 years ago
IF 24 IS ADDED TO A NUMBER, IT WILL BE 3 TIMES AS LARGE AS IT WAS ORIGINALLY. FIND THE NUMBER
Romashka [77]
x-the\ number\\\\x+24=3x\ \ \ \ \ \ |subtract\ 24\ from\ both\ sides\\\\x=3x-24\ \ \ \ \ \ \ |subtract\ 3x\ from\ both\ sides\\\\-2x=-24\ \ \ \ \ \ \ \ |divide\ both\ sides\ by\ (-2)\\\\\boxed{x=12}\leftarrow answer
3 0
3 years ago
The coordinates (-5,2) represent which point?
PSYCHO15rus [73]

Answer:

d

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • The legs of a right triangle are 18 centimeters and 80 centimeters long. What is the length of the hypotenuse?
    13·2 answers
  • A manufacturer has been selling 1000 television sets a week at $500 each. A market survey indicates that for each $10 rebate off
    13·1 answer
  • Which table can be created using the equation below?<br><br> –2 + 4x = y<br><br> Answers are below.
    5·2 answers
  • Find the midpoint of the segment with the following endpoints.<br> (10, 2) and (5,-7)
    6·2 answers
  • A regular hexagon has sides measuring 6 centimeters. The hexagon is enlarged
    11·1 answer
  • How do you solve that problem
    5·2 answers
  • The set of all possible outputs for a function is its:
    8·1 answer
  • What is the solution to the system of equations graphed below?
    10·1 answer
  • What does the solution to a system of equations mean?
    7·1 answer
  • Assume the population of human body temperatures has a mean of 98.6 degrees Fahrenheit as is commonly believed. Assume the stand
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!