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
solmaris [256]
3 years ago
14

Why is 2-7 not equal to 7-2

Mathematics
1 answer:
tangare [24]3 years ago
6 0
When adding/subtracting with different signs, u subtract and take the sign of the larger number.

2 - 7 = -5
7 - 2 = 5
You might be interested in
The scores on a test are normally distributed with a mean of 78 and a standard deviation of 13. Find the score that is 2 standar
Veronika [31]

Answer:

52

Step-by-step explanation:

Given that :

Mean (m) = 78

Standard deviation (s) = 13

Score that is 2 standard deviations below the mean

Using the relation :

Zscore = (x - m) / s

2 standard deviations below the mean means a Zscore of - 2

Hence,

-2 = (x - 78) / 13

Cross multiply

-2 * 13 = x - 78

-26 = x - 78

x = - 26 + 78

x = 52

Score which is 2 standard deviations below the mean is 52

4 0
3 years ago
Find the slope of the line that goes through each pair of points. (-1,7) and (5,7)
Georgia [21]

Answer:

0

Step-by-step explanation:

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

m=(7-7)/(5-(-1))

m=0/(5+1)

m=0/6

m=0

5 0
3 years ago
At a pizza eating competition, Davonne ate four more than twice as many slices as the runner up. If Davonne ate 11 slices, then
Sauron [17]
Let's begin with x as the number of slices the runner up ate.
Davonne ate four more than twice
So the equation should look somewhat like this.
4+2x=11
2x=7
x=3.5
So the runner up ate 3.5 slices
<span>Davonne ate four more than twice as many slices as the runner up. If Davonne ate 11 slices, then how many slices did the runner up eat?</span>
3 0
3 years ago
WILL GIVE 5 STARS TO THE PERSON WHO HELPS WITH AN EXPLANATION!!! If the 32 ounce bottle is 20% more than the typical bottle, how
Aleks04 [339]
So if 32 oz is 20% more than the average bottle, you multiply 32 by .20 which gives you 6.4. This means that the 32 oz bottle is 6.4 oz more than the regular bottle. Furthermore, 32 - 6.4 = 25.6 so that's how big the typical bottle is.
3 0
3 years ago
Pablo uses 4 centimeters of tape for every present he wraps . How much tape will Pablo need in all if he has to wrap 9 presents?
OLga [1]

Answer:

36 centimeters of tape

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Emily and Hunter tracked the average temperature in their city for the past 8 days. They recorded their temperature findings in
    15·1 answer
  • Can someone please please help me with this. please
    7·1 answer
  • Can anyone help me by answering all the unanswered question plzz. it is due tommorow.
    14·1 answer
  • Ethan is proving that the slope between any two points on a straight line is the same. He has already proved that triangles 1 an
    8·2 answers
  • Create a sequence in which 1 1/4 is added to each number
    12·1 answer
  • War your work, please.
    11·1 answer
  • Please help with this
    7·1 answer
  • 10.2x + 3.2 = 4.6<br> solve with steps please `\_(^v^)_/`
    14·1 answer
  • What is the answer for this question
    7·1 answer
  • Help me please????!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!