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
Arisa [49]
2 years ago
5

the mean average distance that jack runs in his last 10 runs is 5.7 miles. work out the distance that he would need to make this

exactly 6 miles
Mathematics
1 answer:
ziro4ka [17]2 years ago
3 0

Answer:

9 miles

Step-by-step explanation:

mean is calculated as

mean = \frac{sum}{count} , then

\frac{sum}{10} = 5.7 ( multiply both sides by 10 )

sum = 57

let x be the distance he needs to cover so mean is 6 , that is

\frac{sum+x}{11} = 6 ( multiply both sides by 11 )

sum + x = 66 , that is

57 + x = 66 ( subtract 57 from both sides )

x = 9

That is he would have to run 9 miles

You might be interested in
The average test scores for a particular test in algebra was 84 with a standard deviation of 5. What percentage of the students
Delicious77 [7]

Answer:

The percentage of the students scored higher than 89% is 15.87%

Step-by-step explanation:

we are given

The average test scores for a particular test in algebra was 84

so, mean is 84

\mu=84

a standard deviation of 5

so,

\sigma=5

we have

x=89

now, we can use z-score formula

z=\frac{x-\mu}{\sigma}

now, we can plug values

z=\frac{89-84}{5}

z=1

now, we can use calculator

and we get

p(z>1)=0.1587

So,

The percentage of the students scored higher than 89% is 15.87%

8 0
3 years ago
Can someone help me with these I don’t understand at all
cupoosta [38]

Answer:

#1: ????

#2: \frac{3}{4} x 15

#3: \frac{7}{8} ÷ \frac{3}{4}

Step-by-step explanation:

For #2:

\frac{3}{4} x 15.

It's that because there are 3/4 cups of honey for one cake. To use for 15 cakes, you would have to multiply it by 15.

For #3:

\frac{7}{8} ÷ \frac{3}{4}.

It's that because the baker has 7/8 cups of honey. It takes 3/4 cups of honey for one cake. So you have to divide it by 3/4 cups in order to find out how many cakes.

Hope this helped! <3

7 0
3 years ago
Is 210 a prime. Composite, or neither. And if the is composite do I write it as a product of prime factors.
e-lub [12.9K]
It is a composite number and it is written as 7*3*5*2
6 0
3 years ago
Read 2 more answers
Find the value of two numbers if their sum is 12 and their differences is 4
Varvara68 [4.7K]

Answer:

8 and 4

Step-by-step explanation:

You find half of the sum and subtract half of the differece for 6 and the other 6 you add the hal of the difference.

4 0
3 years ago
Read 2 more answers
What expression represents “five times the quotient of the some number and ten”?
AleksAgata [21]

Answer:

A

Step-by-step explanation:

because i know it find the fi

3 0
3 years ago
Read 2 more answers
Other questions:
  • Sylvia placed 20 marbles in a bag: 10 red, 5 blue, green, 1 white. If
    5·1 answer
  • EVALAUTE: 5|7 - 9| - 2=<br><br> a. -12<br> b. 0<br> c. 1<br> d. 8
    6·1 answer
  • Mrs Johnson is going to the mall. When she left home her odometer was 54,362. 15 minutes later the odometer read 54,362 miles. W
    11·1 answer
  • Please help on this problem
    13·1 answer
  • Mr. Vazquez determines that the area of a bathroom in his house is 25 square feet less than 1/5 of the area of the living room.
    7·2 answers
  • Quan's last paycheck shows that he eamed $210.00 for 24 hours of work. What is his hourly rate of pay?
    15·1 answer
  • I WILL GIVE BRAINLIEST!!!!!
    7·1 answer
  • Find x if f(x) = 2x + 7 and f(x) = -1.
    9·2 answers
  • Paul, Colin and Brian are waiters.
    11·1 answer
  • The ratio of the height of an object in a photograph to the actual height is 1:200. The height of a statue in the photograph is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!