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
cluponka [151]
2 years ago
7

I need to know this very hard question!

Mathematics
2 answers:
Mumz [18]2 years ago
7 0

Answer:

8 \frac{3}{4} \\

Step-by-step explanation:

Going from left to right on the number line we see that k is between 8 and 9. So 8 will be your whole number.  The number line is divided into 8 sections between each whole number and k is located 6/8 between 8 and 9.  

This mixed number is 8 6/8. We can reduce the 6/8 to 3/4 by dividing by 2 on the top and bottom.  So your final answer is 8 3/4.

lana66690 [7]2 years ago
4 0

Answer:

8 and 3/4

Step-by-step explanation:

so there are 8 tic marks we know that there should be 10 so each tic mark is more than 1

8(x)=10

x=1.25

so each tic mark is 1.25 \

and since the K is on the 6th tic mark 1.25(6)=7.5 or 75%

or 8and 3/4 (in simplest form )

You might be interested in
If n =270 and (p-hat) =0.43, find the margin of error at a 99% confidence level.. give answer to 3 decimals
Troyanec [42]

Answer:

0.078

Step-by-step explanation:

Margin of error = z√(p(1-p)/n)

Given

p-hat = 0.43

n = 270

z at 99% confidence interval = 2.576

Substitute

MOE = 2.576√0.43(1-0.43)/270

MOE = 2.576√0.43*0.57/270

MOE = 2.576√0.2451/270

MOE = 2.576*0.030129

MOE = 0.078

Hence the margin og error is 0.078

7 0
3 years ago
I am not sure how sigma notation works, can somebody explain how to solve this? It isn't the second choice.
Masja [62]

Answer:

first answer is correct

Step-by-step explanation:

Hello, we want to write 2 + 4 + 6 + ... + 20

for n = 1, 2n = 2*1 =2

for n = 2, 2n = 2*2=4

for n = 3, 2n=2*3=6

etc

so

\displaystyle \sum_{n=1}^{10} {2n} = 2*1 + 2*2 +2*3+2*4+...+2*10=2+4+6+8+...+20

thanks

6 0
3 years ago
Lin rode a bike 20 miles in 120 at a constant speed. How far did she ride in 12 minutes?<br>​
zaharov [31]

Answer: 72 miles

Step-by-step explanation:

4 0
3 years ago
Madilyn and Penelope have 28 toys to build. Madilyn builds 3/4 of the toys, while Penelope builds 1/7. How many toys are there l
uysha [10]

Answer:

Step-by-step explanation:

3/4 x 28=21   Madilyn built 21 toys.

1/7 x 28=4     Penelope built 4 toys.

21+4=25        25 toys have been built altogether.

28-25=3

There are 3 toys left to build.

3 0
3 years ago
Create a memory device to help you remember the quadratic formula. The device could be a song, drawing, rhyme, mnemonic device,
Lostsunrise [7]

Answer:

q-u-a-d-r-a-t-i-c  f-o-r-m-u-l-a

Step-by-step explanation:

6 0
4 years ago
Other questions:
  • Correct answers only please!
    7·1 answer
  • Last week a TV soap opera had 7500 viewers. This week it had 25 % fewer viewers. How many viewers did it have this week?
    7·2 answers
  • Pierre wants to make tables and chairs. He has a total of 220 wooden boards and 760 nails. 13T+8C≤220 represents the number of t
    8·1 answer
  • Solve x(−2)3=−2(5). The solution is x=
    11·1 answer
  • Write Money as an amount 74/100
    8·2 answers
  • 58,511 divieded by 21 the qoutient is 2,786 r?
    14·1 answer
  • Complete the solution of the equation. Find the value of y when x equals 0. -7x + 3y = 30​
    6·1 answer
  • How many real solutions does x to the power of 2 + 8x + 20 = 0 have?
    5·1 answer
  • Helpp plss this needs to be done before 11:59 I’ll do anything for you just helpp
    8·2 answers
  • Robert has a marble collection 1/7 of his marbles are blue 2/7 of his marbles are green. What fraction of Robert’s marbles are n
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!