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
seraphim [82]
3 years ago
9

Allegra practices piano each day after school. Last week she practiced 3 3/10 hours. This week she practiced only 2 1/6 hours. H

ow much longer did she practice last week than this week?
Mathematics
1 answer:
hodyreva [135]3 years ago
4 0
Subtract both fractions. Convert both fractions into improper fractions. So do 3x10+9 and see what ur answer is and put it over ten. Then do 2x16+1 and put the answer u get over 6. Then find the common denominator which is 30. Then subract both fractions and u should get ur answer
You might be interested in
(0.053) (0.578)<br> Multiply the numbers
Crazy boy [7]

Answer:

If you multiply the numbers you will get

0.030634

5 0
3 years ago
Answers: <br> a) 74<br> b) 108<br> c)49<br> d)51
lisabon 2012 [21]

Answer:

51

Step-by-step explanation:

sum of exterior angles = 360

64  + 60 + 69 + 42 + x + x +23 = 360

2x + 258 = 360

2x = 360 - 258

2x = 102

x = 51

5 0
3 years ago
Read 2 more answers
Samples of rejuvenated mitochondria are mutated(defective) in 1% ofcases. Suppose 15 samples are studied, and they can be consid
Bezzdna [24]

Answer:

A)0.86

B)0.99

C)6.047E-13

Step-by-step explanation:

Since p = 0.01 and q= 0.99

Number of event n = 15

Using binomial expansion

A) Probability (No samples are mutated) = 15C0 (p)^0 * (q)^15

= 1*(0.01)^0*(0.99)^15 = 0.86

B)Probability (At most one sample is mutated) = 15C0 * p^0 *q^15 + 15C1 * p^1 * q^14 = 1*(0.01)^0*(0.99)^15 + 15C1 * 0.01 * 0.99^14 = 0.86 + 15*0.01*0.8687 = 0.86 + 0.13 = 0.99

C) Probability (More than half the samples are mutated) = 15C8* 0.01^8 * 0.99^7 + 15C9* 0.01^9 * 0.99^6 +15C10* 0.01^10 *0.99^5 + 15C11 * 0.01^11 * 0.99^4 + 15C12 * 0.01^12 * 0.99^3 + 15C13 * 0.01^13 * 0.99^ 2 + 15C14 * 0.01^14 * 0.99^1 + 15C15 * 0.01^15 * 0.99^0

Probability (More than half the samples are mutated) = 6E-13 + 4.71E-15 + 2.86E-17 + 1.31E-19 + 4.41E-22 + 1.03E-24 + 1.49E-27 + 1E-30 = 6.047E-13

3 0
3 years ago
How many total minutes does she read if she read for 20 minutes for the first day and everyday after that she reads five minutes
allsm [11]

Answer:

so on the first day she read 20 and the next they read 25 and the next day they read 30 for those thirty days add five and hopefully you will get ur answer


3 0
3 years ago
17 plus what equals 79
Tasya [4]
The answer would be 62
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 2^4+5*6*4+4/2*50 plz help
    13·2 answers
  • What is the missing number in this pattern? 1, 1, 2, 3, 5, 8, 13,
    11·1 answer
  • 3. PENTAGON The Pentagon is a five-sided
    13·1 answer
  • Figure ABCD is a parallelogram with point C (3, −2). Figure ABCD is rotated 90° clockwise to form figure A′B′C′D′. What coordina
    9·1 answer
  • What does slope intercept form means......
    7·2 answers
  • What is the domain of the function y= sqaure root of x ? HELP PLEASEIM TIMED
    9·1 answer
  • Pls pls pls help me
    11·1 answer
  • Nolan just drove at a constant rate for 5 hours. He is now 340 miles from where he started. At what rate was he driving? Nolan h
    14·1 answer
  • If HI = 7, find KL.
    5·1 answer
  • If anyone knows please help me
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!