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
Triss [41]
2 years ago
6

The mean length of 7 childrens' index finger is 9.4cm. The mean length of 5 adults' index finger is 10.2cm. What is the mean len

gth (rounded to 2 DP) of these 12 people's index finger?
Mathematics
2 answers:
stira [4]2 years ago
8 0

Answer:

9.7 cm

Step-by-step explanation:

Deffense [45]2 years ago
3 0

Answer:

9.73  cm to 2 DP

Step-by-step explanation:

Total of the  lengths involved = 7*9.4 +  5*10.2

= 116.8 cm

So the mean of the 12 fingers

= 116.8/12

= 9.73  cm to 2 DP.

You might be interested in
Please help with this question?!?
erik [133]

Answer:

416 mi

Step-by-step explanation:

In order to find the surface area, you must find the area of each square. There are a total of 6 that make up the prism.

<em>Remember to find the area it is length x width</em>

  1. 9 x 8 = 72 which is the area for 4 of the squares. 2 on the side and 2 on the bottom
  2. Lastly for the last 2 squares to find the area you multiply 8 x 8 = 64
  3. In total, you will add 72+72+72+72+64+64 which equals 416

3 0
2 years ago
What is the key idea of this passage ​
Luda [366]
You have to insert the passage first
7 0
3 years ago
Yuri purchased 8 trees to have planted at his house. The store charged a delivery fee of $5 per tree.
cestrela7 [59]

Answer:

$16.

Step-by-step explanation:

Let t represent the cost of each tree.

We have been given that Yuri purchased 8 trees to have planted at his house. So the cost of 8 trees will be 8t.

We are also told that the store charged a delivery fee of $5 per tree. So the delivery charges of 8 trees will be 8\times \$5=\$40

The total cost of purchasing 8 trees will be 8t+40.  

Since the total cost of the trees including the delivery was $168, so we can get an equation as:

8t+40=168

8t+40-40=168-40

8t=128

Upon dividing both sides of our given equation by 8, we will get:

\frac{8t}{8}=\frac{128}{8}  

t=16  

Therefore, the cost of each tree is $16.

5 0
3 years ago
Please help I need this ASAP.
Serjik [45]

Answer:

its a line

Step-by-step explanation:

7 0
3 years ago
About 8% of the U.S. population catches the flu each season. Assuming everyone has equal probability of catching the flu, about
avanturin [10]

Answer:

  • <u>The odds are 2 : 23, or about 0.09 :  1 (0.09 to 1).</u>

Explanation:

The <em>odds </em>of an event is the ratio of occurrence to non-occurrence of the event.

When you know the <em>probability</em> of an event, then you can calculate the odds by dividing the probability of occurence by the probability of non-occurrence.

Calling p the probability that an event will happen, 1 - p is the probability that it will not happen and the odds will be:

  • Odds = p / ( 1 - p)

You have p = 8% = 0.08, and 1 - p = 1 -0.08 = 0.92.

Therefore:

  • Odds = 0.08 / 0.92 = 8 : 92 = 2 : 23 ≈ 0.09 : 1 (0.09 to 1)

8 0
3 years ago
Other questions:
  • How many eggs in 3 and a half dozen?
    11·2 answers
  • Someone please help and explain it would really help
    5·1 answer
  • Farmer Faye has all of her ducks and all of her pigs in her barn. She has 12 animals in the barn and they have 32 legs. How many
    9·2 answers
  • Determine the equation of the line shown in the graph:
    9·2 answers
  • the point 3,2 lies on a circle.what is the exact length of the radius of this circle if the center is located at (-1,-4)
    13·1 answer
  • Help on 3&amp;4 I don't get what in the Mumbo jumbo their talking about
    12·2 answers
  • The drama club is selling tickets to the play to raise money for the shows expenses. Each student ticket sales for five dollars
    7·1 answer
  • Complete the following problems. Please show your work.
    11·2 answers
  • 3/5(a + 5.25) = 7.35 What does a equal
    7·1 answer
  • The circumference of a circle is 9.37cm.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!