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
KonstantinChe [14]
2 years ago
15

The mean length of 9 childrens' big finger is 6.8cm.

Mathematics
1 answer:
Ulleksa [173]2 years ago
3 0

Answer:

The mean length of these 12 people's big finger is of 7.85 cm.

Step-by-step explanation:

Mean value:

Sum of the values of all observations divided by the number of observations.

In this question:

9 + 3 = 12 total observations

Sum:

9*6.8 + 3*11 = 94.2

So

M = \frac{94.2}{12} = 7.85

The mean length of these 12 people's big finger is of 7.85 cm.

You might be interested in
A reasonable estimate for the mass of a baby would be 7 __ pounds
zaharov [31]
Maybe 7.4 pounds idk sorry if I’m wrong
7 0
3 years ago
Read 2 more answers
The length of a rectangle is 2 meters less than 2 times the width. The perimeter is 20 meters. Find the width.
kakasveta [241]
The equation you'd make would be (2x-2)+(2x-2)+x+x=20 because the length is 2 m less than the width (x). To simplify, it'd be 6x-4=20 because you combine like terms. You then move the -4 over to the 20 to make it 6x=24. The final answer is 4 meters.
4 0
3 years ago
Find the least number between 200 and 500 which leaves a remainder of 3 in each case when divided by 8 ,10,12 and 30.
Nookie1986 [14]
Well, that means that it is 3 more than a common multipule of 8,10,12, and 30
find the lcm

8=2*2*2
10=2*5
12=2*2*3
30=2*3*5
lcm=2*2*2*3*5=120
times it by 2 to get it between 200 and 500
240
add 3
243 is da number
5 0
3 years ago
Read 2 more answers
GIVING BRAINLIEST -60 points-<br><br> Answer 1, 2, 3 &amp; 4 for brainliest.
natali 33 [55]

Answer:

2.

the distance from E to D,D toF and F to E are equal.

6 0
3 years ago
Read 2 more answers
Find a number such that its two-third is equal to 5/4
levacccp [35]

Answer:

x = 15/8.

Step-by-step explanation:

Create an equation, let the number be x:

2/3 * x = 5/4

Now we multiply both sides by 3/2

3/2 * 2/3 x = 5/4 * 3/2

x = 15/8.

7 0
3 years ago
Other questions:
  • How many eggs in 3 and a half dozen?
    11·2 answers
  • An angle measures 44° more than the measure of a complementary angle. What is the measure of each angle?
    14·1 answer
  • Sandra plans to excersise the same number of minutes m each of the remaning three days this week in order for sandra to excersis
    10·1 answer
  • Hello, im not sure where my teacher got 180 out of this scatter plot
    11·2 answers
  • Find the perimeter of the
    6·1 answer
  • THIS IS URGENT PLEASE
    6·1 answer
  • 2. How many solutions does each equation
    11·1 answer
  • MATHS
    12·2 answers
  • When dividing two different Integers what would their sign be?
    15·2 answers
  • 100 POINTS AND BRAINLIEST!! PRE CALC!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!