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
Dmitry [639]
3 years ago
11

In a 3-hr examination of 320 questions, there are 40 mathematics problems. if twice as much time should be allowed for each math

ematics problems as for each of the other questions, how many minutes should be spent on mathematics problems?
Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
3 0
Total questions = 320 
Total mathematics problems = 40
Total non-mathematics problem = 320 - 40 = 280

Twice the amount of time is needed for mathematics problem.
40 x 2x + 280 x = 3 hours
80x + 280x = 3 hours
360x = 180 mins
x = 0.5 mins
2x = 0.5 x 2  = 1 min

Answer: 1 min should be spent on Mathematics problems
il63 [147K]3 years ago
3 0

Answer:

1 minute should be spent on each math problem

Step-by-step explanation:

Total questions = 320  

Mathematics problems = 40

Non-mathematics problem = 320 - 40 = 280

Twice the amount of time is needed for mathematics problem.

40 x 2x + 280 x = 3 hours

80x + 280x = 3 hours

360x = 180 mins

x = 0.5 mins

2x = 0.5 x 2  = 1 min

You might be interested in
Dr. Thomas just started an experiment. She will collect data for 6 days. How many hours is this?
Ber [7]
6 days* 24 hours per day= 144 hours

Final answer: 144 hours
4 0
3 years ago
Read 2 more answers
Sonny's band rehearsal started at 10:30 A.M. It ended 1 hour and 40 minutes later. At what time did Maya's band rehearsal end?
Alecsey [184]

Answer:

12:10

Step-by-step explanation:

...

5 0
3 years ago
suppose a farmer has six cows and each cow has six calves the first year, they all increase in the same propotion, to the end of
Sergio [31]

Hi!

To solve this question you need to solve 7^8 x 6

7^8 = 5,764,801

5,764,801 x 6 = 34,588,806

4 0
3 years ago
Hey, how do I apply the digital root method to division? Thanks.
REY [17]

Step-by-step explanation:

The digital root of a number is the single digit that you get by adding all of the digits of the original number together. If the result of that is multiple digits, you add those digits together, repeating the process until you get a single digit. That digit is the digital root of the original number.

example given

257520643

2+5+7+5+2+0+6+4+3

7+12+2+10+3

7+1+2+2+13

8+4+1+3

8+4+4

12+4

16

1+6=7

5 0
3 years ago
-0.125 as a fraction
kaheart [24]

Answer:

-1/8

Step-by-step explanation.

125 x 8 = 1000

.125 x 8 = 1

-.125 x 8 = -1

-1/8

8 0
3 years ago
Other questions:
  • 3(x-1)=2x+5 what is the solution
    14·2 answers
  • 45 points.!!!! <br> Does a bias study mean the conclusions reached by the study are false?
    6·2 answers
  • Here are Xavier's bowling scores:
    8·2 answers
  • PLEASE GUYS HELP QUICK. PLEASE DO EVERYTHING IT ASKS YOU TO DO show work and ect , I'M OFFERING 11PTS ( More than its worth) And
    11·1 answer
  • I am not sure of the answer on this one.
    11·2 answers
  • In their 1943 meeting at Casablanca, Allied leaders decided to invade
    8·1 answer
  • Need answers asap pls bae&lt;3<br>ill mark you the whatever if you answer bae​
    13·1 answer
  • The city of Anville is currently home to 16000 people, and the population has been growing at a continuous rate of 4% per year.
    10·1 answer
  • Please answer this question needed ASAP!
    12·1 answer
  • Cassandra has $2000 dollars in a bank account that she uses to make automatic $900.01 mortgage
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!