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
Dafna11 [192]
2 years ago
12

The oldest child in a family of four children is twice as old as the yougest. The two middle children are 12 and 16 years old. I

f the average age of the children is 15.25 , how old is the youngest child?
Mathematics
1 answer:
Vladimir [108]2 years ago
6 0
Four children average is 15.25 so ages must add to 61
61-12-16=33
11 and 22 go into 33
Youngest is 11
You might be interested in
Mr. Koppel stops at a gasoline station to get gas for his car. Gasoline costs $1.49 a gallon. About how many gallons will Mr. Ko
GREYUIT [131]


If Mr. Koppel only has $10.00 to spend on gas, and the gas is $1.49 a gallon. We will have to divide $10 into 1.49.

10  ÷  1.49  =  6.7

So, Mr. Koppell will be able to buy 6.7 gallons of gas with his $10.00.

Hope this helps. :)

7 0
3 years ago
Read 2 more answers
There are three children in a family. a friend is told that at least two of them are boys. what is the probability that all thre
Nostrana [21]
It would be 33.333333% Likely to be a boy or a girl.
7 0
3 years ago
Veterinary researchers at a major university veterinary hospital calculated a 99% confidence interval for the average age of hor
mestny [16]

Answer:

c. we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.

Step-by-step explanation:

Given that veterinary researchers at a major university veterinary hospital calculated a 99% confidence interval for the average age of horses admitted for laminitis, a foot disease that leaves the horse severely lame, as 6.3 to 7.4 years.

i.e. if X is the age of horses admitted for laminitis then the sample mean i.e. x bar follows a distribution with 99% confidence interval as

(6.3,7.4)

The interpretation of 99% confidence interval is the for sample of large size drawn at random from population we can be 99% confident that the sample mean will fall within this interval.

So the correct option is

c. we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.

8 0
3 years ago
Please answer it correctly
jeyben [28]

Answer:

8,000 I'm pretty sure so yw if it's right

7 0
3 years ago
Read 2 more answers
3. There are 2 girls and 3 boys on a camping trip. What is the ratio of girls to boys on the trip? Choose all that apply. 2:3 2
Oksi-84 [34.3K]

Answer:

2:3

Step-by-step explanation:

5 in total as you subtract the dudes

4 0
3 years ago
Other questions:
  • Given the equation y = 3x − 4, what is the value of y when x = 4?
    9·1 answer
  • A map of Scotland is drawn to a scale of 1:325,000. How many centimetres on the map would show 65km?
    9·1 answer
  • 1. composite number any number that is not a prime number 2. even number number that divides evenly into another number 3. facto
    15·1 answer
  • The area, a, of a square whose side length is n
    9·1 answer
  • 9. During the soccer season, Michelle attempted 130 goals and made about 70% of them. a. How many goals did Michelle make? b. Th
    12·1 answer
  • Answer please due this second
    11·1 answer
  • On Monday, a local hamburger shop sold a combined total of 584 hamburgers and cheeseburgers. The number of cheeseburgers sold wa
    6·1 answer
  • Howe do I solve it 5=n/5+8
    11·1 answer
  • PLEASE HELP ME ASAP ITS DUE TODAY!!!!!! WILL GIVE BRAINLIEST TO ANSWER JUST PLEASE HELP ME!
    10·1 answer
  • What fraction and decimal forms match the long division problems? <br> plz help its for a test!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!