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
Olegator [25]
3 years ago
8

which one of the following uses estimation to check 267-154=113? a. 300-200=100. b. 113+154=267. c. 300-150=150. d. 270-150=120

Mathematics
2 answers:
Vlada [557]3 years ago
8 0
A. 300-200=100
You round 267 to 300, 154 to 200, and 113 to 100.
larisa [96]3 years ago
6 0
A, C and D are all using estimation to check the result. 

A is rounding to the nearest multiple of 100. 
267 --> 300 
154 --> 200 <span>

C is rounding to the nearest multiple of 50. </span>
<span>267 --> 300 </span>
<span>154 --> 150 </span>

<span>D is rounding to the nearest multiple of 10. </span>
<span>267 --> 270 </span>
<span>154 --> 150 </span>

<span>Those each give you an estimation of the final answer to see if 113 is a reasonable answer. </span>

<span>Method B is just switching the values around to check the subtraction using addition. That's a valid way to double check the result, but is NOT estimation. </span>

<span>If you are only expected to give *one* answer, then method D is the best way to check using estimation because it does the least amount of rounding. </span>

<span>Answer: </span>
D. 270 - 150 = 120
You might be interested in
Please help me thnk you
kramer
For this question, we use the Pythagorean theorem.

a^2+b^2=c^2

We know the lengths of the legs, a and b.
a=3
b=4

Now, let's solve for the hypotenuse, c.

3^2+4^2=c^2
25=c^2

Take the positive square root.

\boxed{c=5}

Hope this helps! :)
8 0
3 years ago
Read 2 more answers
Rosa Roberto Andrea and innocent find an estimate for square root of 10
AysviL [449]
The square root of 10 is 3.1 but to estimate it find the square root of 9 which is 3
5 0
3 years ago
Surface area of this cone
Furkat [3]

Answer:

1041.27

Step-by-step explanation:

A=πrl+πr2

l=r2+h2

Solving forA

A=πr(r+h2+r2)=π·12·(12+102+122)≈1041.26829

6 0
3 years ago
Read 2 more answers
Smith High School offers a baseball camp that is $75 for 4 days of camp and a basketball camp that is $100 for 5 days of camp. W
laiz [17]
75             100 
  4 *               5
300          500       it would be baseball camp. exactly
6 0
3 years ago
A 5-pound bag of cat food costs $11.25. What is the unit price of the cat food?
Luda [366]
B. $2.25 you just divide
3 0
3 years ago
Other questions:
  • Angle Sum Theorem, thank you so much for the help, in advance! ​
    12·1 answer
  • What is the value of this expression when c = -4 and d = 10?
    11·2 answers
  • Find the number of 1 cm cubes that can be placed in the box that right
    14·2 answers
  • Which of the following represents the most accurate estimation of 54 - 16?
    12·1 answer
  • The figures below are made out of circles, semicircles, quarter circles, and a square. Find the area and the perimeter of each f
    5·1 answer
  • A $125.70 grocery total is discounted 30%. What is the total paid?
    5·1 answer
  • Multiply x(x^2+2x+4) and -2(x^2+2x+4)<br> Combine like terms:<br> Final answer:
    9·1 answer
  • How to solve 5.25s-2.01=-8.94​
    10·1 answer
  • Which expression is equivalent to <img src="https://tex.z-dn.net/?f=-4x%5E%7B-5%7D%20x%5E%7B0%7D" id="TexFormula1" title="-4x^{-
    15·1 answer
  • After an overpayment last month, the balance on a customer’s billing statement is −$50.00. This month’s new charges are $124.80.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!