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
kykrilka [37]
3 years ago
9

What is 12.3 + 4.7 estimate sum and difference

Mathematics
2 answers:
AlexFokin [52]3 years ago
5 0

Answer:

Sum- 17 Difference- 7.6

Papessa [141]3 years ago
4 0

Answer:

To find the estimated sum, round the 2 integers to the nearest whole number.

12.3----->12

4.7------->5

we round 12.3 to 12 because whenever we're asked to round a number, we always look to the digit to the right of the number, if the digit on the right is greater than or equal to 5, we round up if it's less that 5, we round down.

12+5=17

12.3-4.7

we already rounded 12.3 to 12 and 4.7 to 5 so now

12-5=7

Hope this helps

You might be interested in
Hurry ill give brainiest if u help me
grin007 [14]
The y-intercept should be closer to ten. 
3 0
3 years ago
Read 2 more answers
Hi, I am taking PSAT and I am working on the math section. I need help with answering this math type of question. Please give th
ValentinkaMS [17]

By using the concept of uniform rectilinear motion, the distance surplus of the average race car is equal to 3 / 4 miles. (Right choice: A)

<h3>How many more distance does the average race car travels than the average consumer car?</h3>

In accordance with the statement, both the average consumer car and the average race car travel at constant speed (v), in miles per hour. The distance traveled by the vehicle (s), in miles, is equal to the product of the speed and time (t), in hours. The distance surplus (s'), in miles, done by the average race car is determined by the following expression:

s' = (v' - v) · t

Where:

  • v' - Speed of the average race car, in miles per hour.
  • v - Speed of the average consumer car, in miles per hour.
  • t - Time, in hours.

Please notice that a hour equal 3600 seconds. If we know that v' = 210 mi / h, v = 120 mi / h and t = 30 / 3600 h, then the distance surplus of the average race car is:

s' = (210 - 120) · (30 / 3600)

s' = 3 / 4 mi

The distance surplus of the average race car is equal to 3 / 4 miles.

To learn more on uniform rectilinear motion: brainly.com/question/10153269

#SPJ1

4 0
1 year ago
Pretty sure its 8 but i just wanna be sure...
Agata [3.3K]

Answer:

Yup i'm pretty sure its 8 :D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Given f(x)=-4x+7 find f(2) how do i slove this
yan [13]

Answer:

-1

Step-by-step explanation:

given f(x)=-4x+7 find f(2)

f(2) means question : if x=2, f(2)=?

f(2)= -4x2+7=-1

8 0
3 years ago
The statement "If 1/2x=5, then x=10 is justified by the
Anton [14]
I think it's the Multiplication Property of Equality.

Hope this helps you! :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • The property that says you can add or multiply numbers in any order , without changing the answer , is called the Property.
    10·1 answer
  • 20 POINTS!!
    9·1 answer
  • Line segment EF is shown on a coordinate grid:
    13·2 answers
  • What price does the price tag say in the window?
    13·1 answer
  • What is the factorization of 3x2 – 8x + 5?
    9·1 answer
  • What is 10^-7 equal to?
    6·1 answer
  • What is the difference between 64,926 and 49,079​
    7·2 answers
  • The value of an irrigational number expression is estimated to be between 18 and 19. Which could be the expression
    7·1 answer
  • Brainiest only if you get it right
    11·2 answers
  • Someone please help.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!