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
Klio2033 [76]
3 years ago
10

The mean temperature for the first 4 days in January was 7°C. The mean temperature for the first 5 days in January was 9°C. What

was the temperature on the 5th day?
Mathematics
2 answers:
attashe74 [19]3 years ago
6 0

Answer:

11 C

Step-by-step explanation:

To find the mean (average), you have to add all and divide by 2, so if you reverse this, you get (7 + X)/2  = 9 , 9 * 2 - 7 = 11

grin007 [14]3 years ago
4 0

Answer:

If the mean was 7 for the first 4 days that means the sum of temperatures of the first 4 days was 7 * 4 = 28. Similarly, the sum of temperatures of the first 5 days was 9 * 5 = 45 so that means that the temp. on the 5th day was 45 - 28 = 17°C.

You might be interested in
Work out the input for this function machine ​
Delicious77 [7]

Answer:

Answer is 12 isnt it

Step-by-step explanation:

12×4=48

48+9=57

4 0
2 years ago
Each row of the table represents a cone with a height of
kykrilka [37]
8171 9 inches and different radius
3 0
3 years ago
There are 30 blue balls, 40 red balls, and 30 white balls in a bag of balls. What is the conditional probability of choosing a b
natulia [17]

Answer: So, the probability will be

P( \text{getting a blue ball })=\frac{30}{70}=\frac{3}{7}

Step-by-step explanation:

Since we have given that

Number of blue balls =30

Number of red balls = 40

Number of white balls = 30

Since there are 100 balls in total ,

As we have given that there is no white ball chosen.

So, only 70 balls are left with us , from which we choose a blue ball

So, the probability will be

P( \text{getting a blue ball })=\frac{30}{70}=\frac{3}{7}


4 0
3 years ago
Read 2 more answers
Plz help hurry i need to turn this in today and i don't have time to waste
serg [7]

Answer:

Part One: $187

Part Two: 11a + 5.5k

Step-by-step explanation:

Part One:

a = 9 (how many adult tickets)

k = 16 (how many kid tickets)

($11 × a) + ($5.50 × k) = total cost

($11 × 9) + ($5.50 × 16)

($99) + ($88) = $187 = total cost

Part Two:

11a + 5.5k

11 is how much the adult ticket costs, you multiply a or the amount of adult tickets in order to get the total cost for adults.

5.5 is how much the kid ticket costs, you multiply k or the amount of kid tickets in order to get the total cost for kids.

you add 11a + 5.5k or the total cost for adults and the total cost for kids to get the total cost.

3 0
3 years ago
The sum of a number is<br> 4 less then 2 times a<br> number is 35 what is the number?
Artist 52 [7]
<h2>Answer:</h2>

<em>21.5</em>

<h2>Step-by-step explanation:</h2>
  1. 35 divided by 2 = 17.5
  2. 17.5 + 4 = 21.5
  3. <u>Just do the inverse</u>
5 0
2 years ago
Other questions:
  • Find the value of X. Write your answer in simplest form.<br>What does X equal? ​
    7·1 answer
  • a person weighs 158.53 lb on earth and weighs 26.95 lb on the moon, how much does a 243.53 lb person weigh on the moon?
    11·1 answer
  • What is the domain of the function shown in the graph below?
    11·2 answers
  • Is -2 greater than -6
    13·2 answers
  • You had 13 of your allowance left on Monday. On Tuesday, you spent 13 of that amount of money. On Wednesday, you spent 13 of wha
    5·1 answer
  • 3(2x^2+5)-12 for x is 3
    6·1 answer
  • Which of the following is a function
    5·1 answer
  • A person who is 5 feet tall is standing 108 feet from the base of a tree, and the tree casts a 120 foot shadow. The persons shad
    9·1 answer
  • PLEASE HELP ASAP<br> ILL GIVE BRAINLIEST!!!
    7·1 answer
  • Robert is writing a paper for language arts class. He can write 2/3 of a page in 1/4 of an hour. At what rate is Robert writing?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!