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
Nitella [24]
3 years ago
7

Deandra is doing her math homework. Out of 24 problems total, she completed the first 12 problems in 1 hour and the last 12 prob

lems in 3 hours. What is the unit rate for all 24 problems?
Mathematics
2 answers:
Travka [436]3 years ago
8 0
To find unit rate for all 24 problems.  
12 problems completed in 1 hour = 12 in 60 minutes
 Last 12 problems in 3 hours = 12 in 180 minutes
 Total 24 in (180+60= 240) minutes
 Time taken to solve one problem = 240/24 = 10 minutes. 
 This means Deandra on an average took 10 minutes to solve each problem.
AlladinOne [14]3 years ago
4 0

If you divide 12 by 3 the correct answer should be 4 problems per hour.

You might be interested in
5.815 + 6.021 as a mixed number
tia_tia [17]
<h2><u>Answer</u></h2>

11 209/250

<h2><u>Explanation</u></h2>

5.815 + 6.021

First add the numbers the way they are.

          5.815

       <u> +6.021</u>

      <u>   11.836</u>

The whole number is 11.

11.836 = 11 + 0.836

0.836 = 836/1000

Dividing byy 4 we get,

0.836 = 836/1000 = 209/250

∴ 11.836  = 11 209/250

3 0
2 years ago
Read 2 more answers
Find the area of a circle that has a diameter of 11 inches. Approximate ar as 3.14. Round your answer to the
swat32

Answer:

94.99

Step-by-step explanation:

Hi,

The formula to find the area of a circle is: A = πr²

So...

A = 3.14 (r)²

The radius of the circle is 5.5 because half of the diameter is the radius.

A = 3.14 (5.5)²

A = 3.14 (30.25)

A = 94.985 rounded is 94.99

I hope this helps :)

6 0
2 years ago
-2(x+4)<br> Help find answers
MAVERICK [17]
Answer=-2x-8 yeah that should be ur answer
3 0
2 years ago
Read 2 more answers
What is a counterexample of the following conjecture any number that is divisible by 3 is also divisible by 6
Bess [88]

Any odd multiple of 3 would be the counterexample of the given conjecture.

That is 3(2n - 1), for any natural number n, will be divisible by 3 but not divisible by 6 as 2 is not a factor.

<u>Examples:</u>

3(3) = 9

3(5) = 15

3(7) = 21 are some examples.

6 0
3 years ago
H. C. F of 20,40 and 50​
Vesnalui [34]

Answer:

10

Step-by-step explanation:

HCF of 20, 40 & 50:

20: 1, 2, 4, 5, 10, 20

40: 1, 2, 4, 5, 8, 10, 20, 40

50: 1, 2, 5, 10, 25, 50

HCF: 10

Topic: HCF and LCM

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

8 0
2 years ago
Other questions:
  • 51 please and thank you!
    10·1 answer
  • How do you solve a problem involving squeeze theorem?
    14·1 answer
  • X^2 + 8x + c<br> What is c ?
    6·1 answer
  • WILL MARK BRAINLIEST!
    13·2 answers
  • Simplify (a+7) + (3a+4)
    7·1 answer
  • Write the number 2.7 x 10^-3
    5·2 answers
  • The difference between a number divided by 3 and 4 is 20
    9·1 answer
  • Hello please help i’ll give brainliest
    7·1 answer
  • Help pls. it’s due tomorow and i’m giving brainliest to first right answer
    7·1 answer
  • (X1+X2/2). (Y1 + Y2/2) what is this equation called. its 16 letters long plz help need for 10th grade semester finals.​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!