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
Brut [27]
3 years ago
15

Show how to add 2 1/2+4/5 using a number line

Mathematics
1 answer:
Lelu [443]3 years ago
8 0

Answer: 11 and 3/10



Step-by-step explanation: first fing how many times 2 fits into 21 wich it fits 10 times so it would be 10 and 1/2 change 10 and 1/2 to 10 and 5/10 by multiplying it by 2. Then change 4/5 to 8/10 by multiplying by 2 then add 10 and 5/10 to 8/10 simplify if nessesary



You might be interested in
Question 27 of 28<br> 1 Point<br> What is the slope of the line shown below?<br> (3,-2)<br> (2,-4)
Gwar [14]

Answer:

The slope is 2

Step-by-step explanation:

To find the slope given two points, we use the formula

m = (y2-y1)/(x2-x1)

   = (-4--2)/(2-3)

   = (-4+2)/(2-3)

   = -2/-1

   = 2

6 0
3 years ago
Solve for b and simplify your answer. 10=2/3 b​
MrMuchimi

Answer:

b=15

Step-by-step explanation:

2/3b=10

3×2/3b=10×3

2b=30

÷2. ÷2

b=15

7 0
3 years ago
Which of the following has zeros that are not significant?
serious [3.7K]

Answer:

1.30 N

Step-by-step explanation:

All zero's preceding the first integers are never significant. For example: 0.0078 has two significant figures. All zero's after the decimal point are always significant. For example: 4.500, 45.00 and 450.0 all have four significant figures

4 0
3 years ago
Evaluate the function. f(x)=-x^2+6x+4 Find f(−7)
earnstyle [38]

Answer:

x=5.70156211,−0.70156211

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
While she was on holiday,Olga measured the temperature at the same time every day. Here are the results. Work out the median: Th
alukav5142 [94]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the required data are not given.

I will use the following data as an illustration of how to calculate median and range.

We have:

x: 11, 13, 14, 15, 18, 20

<u>Calculate range</u>

Identify the highest and the least

Highest = 20

Least = 11

So, the range is:

Range = Highest -Least

Range =20-11

Range =9

<u>Calculate the median</u>

The number of data we are using is 6 (i.e. even).

So, the position of the median item is:

Median =\frac{1}{2}(n+1)

Median =\frac{1}{2}(6+1)

Median =\frac{1}{2}*7

Median =3.5th

A decimal result implies that the median is the mean of the integer values before and after the result.

In this case, the median is the mean of the item at 3rd and 4th positions.

So:

Median = \frac{14+15}{2}

Median = \frac{29}{2}

Median = 14.5

3 0
3 years ago
Other questions:
  • A smaller square park has an area of 3600 square meter. what is the length of one side of the park
    12·1 answer
  • Nothing to ask here thanks though
    7·1 answer
  • How do you solve 4√2/2
    7·2 answers
  • Are there any outliers in this data set 15. 11, 11, 12, 6, 4-5.6.15 5.10, 10,5.5, 2, 15, 2, 10, 15-5.4.5.12
    9·2 answers
  • Mary has already sold $55 worth of tickets to the benifet concert. She has 3 tickets left to sell at $7 per ticket. Write a func
    6·1 answer
  • Solve by Substitution <br> -2x+y=0, 5x+3y=-11
    6·2 answers
  • The cost of a pound of nails increased from ​$2.17 to ​$2.52. What is the percent of increase to the nearest​ whole-number perce
    11·1 answer
  • I WILL GIVE BRAINLIEST!!!
    14·1 answer
  • Tell whether angles are adjacent or vertical. Then find the value of x. 11-13
    12·1 answer
  • Enter the fraction in simplest form. <br><img src="https://tex.z-dn.net/?f=%5Cfrac%7B51%7D%7B68%7D%20" id="TexFormula1" title="\
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!