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
rjkz [21]
4 years ago
14

What is 9/45 divided by 7/42

Mathematics
2 answers:
Brrunno [24]4 years ago
8 0
first\ sipmlify\ the\ 
fractions:\\\dfrac{9}{45}=\dfrac{9:9}{45:9}=\dfrac{1}{5}\\\\\dfrac{7}{42}=\dfrac{7:7}{42:7}=\dfrac{1}{6}\\\\\dfrac{9}{45}:\dfrac{7}{42}=\dfrac{1}{5}:\dfrac{1}{6}=\dfrac{1}{5}\cdot\dfrac{6}{1}=\dfrac{1\cdot6}{5\cdot1}=\dfrac{6}{5}=\dfrac{5+1}{5}=\dfrac{5}{5}+\dfrac{1}{5}\\\\=1+\dfrac{1}{5}=\boxed{1\dfrac{1}{5}}
Ghella [55]4 years ago
7 0
6/5. simplify 9/45 to 1/5 and flip 7/42 to 42/7 and multiply 1/5 by 42/7 which would be 42/35 and simplify to 6/5
You might be interested in
A simple random sample of 100 8th graders at a large suburban middle school indicated that 81% of them are involved with some ty
Sophie [7]

Answer:

The  interval is  0.7187  < p < 2.421

Step-by-step explanation:

From the question we are told that

      The  sample size is  n  = 100

       The  population  proportion is p  =  0.81

       The  confidence level is  C =  98%

The level of significance is mathematically evaluated as

     \alpha  =  100 -98

    \alpha  =  2%%

    \alpha  =  0.02

Here this level of significance represented the left and the right tail

The degree of  freedom is evaluated as

     df =  n-1

substituting value  

    df =  100 - 1

     df = 99

Since we require the critical value of one tail in order to evaluate the  98% confidence interval that estimates the proportion of them that are involved in an after school activity. we will divide the level of significance by 2

The  critical value of  \frac{\alpha}{2} and the evaluated degree of freedom is  

      t_{df , \alpha } =  t_{99 , \frac{0.02}{2}  }  = 2.33

this is obtained from the critical value table  

The standard error is mathematically evaluated as

             SE =  \sqrt{\frac{p(1-p )}{n} }  

substituting value  

           SE =  \sqrt{\frac{0.81(1-0.81 )}{100} }  

           SE = 0.0392  

The 98%  confidence interval is evaluated as

      p  - t_{df ,  \frac{\alpha }{2} } *  SE  < p <  p  + t_{df ,  \frac{\alpha }{2} }

substituting value  

     0.81  - 2.33  *  0.0392  < p <  0.81  +2.33 *  0.0392

      0.7187  < p < 2.421

     

4 0
3 years ago
Write The quotient of fifteen and the product of seven and a number as an equation.
sdas [7]

Answer: 15/7x=

Step-by-step explanation: that is the equation

pls mark brainliest

7 0
3 years ago
the product of 8 and the sum of 4 and a number is 112. What is the number? Which equation could be used to solve for the number?
Akimi4 [234]
Product of 8 and the sum of 4 and a number:

sum of 4 and a number: (4 + n)

Product of 8

8 x (4 + n) is 112

8 x (4 + n) = 112

Distribute

32 + 8n = 112

Subtratc

8n = 80

Divide by 8

n = 10

The number is 10, and next time please put options because it says "Which equation could be used to solve for the number?" Thanks! :)
4 0
4 years ago
Read 2 more answers
Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 45 of the number of part 1 que
vesna_86 [32]

Given :

Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 4/5 of the number of part 1 questions. Part 2: She got 16 questions correct, which was 2/3 of the number of part 2 questions.

To Find :

The total number of questions on Stephanie's exam.

Solution :

Let, number of questions in Part 1 is x :

16=\dfrac{4}{5}x\\\\x=20

Let, number of questions in Part 2 is y :

16=\dfrac{2}{3}y\\\\y=24

Therefore, total number of questions on Stephanie's exam are 20 + 40 = 60.

Hence, this is the required solution.

5 0
3 years ago
Help! I PUT 50 POINTS!
artcher [175]

Answer:

i-4 1/8

ii- 2 3/100

iii- 10 123/1000

iv- 292/625

Step-by-step explanation:

...

4 0
3 years ago
Other questions:
  • What is nine divided by five to the sixth power?
    12·2 answers
  • How do you prove:<br> csc^<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="754735161a06">[email&#160;pro
    11·2 answers
  • the sum of two number is 21 the larger number is 6 less than twice the smaller number. Find the two numbers.
    10·1 answer
  • If h(x) = -3x - 10, find h(-3).<br> Answer<br> -1<br> 2.3<br> -19<br> 1<br> ...?
    13·1 answer
  • Which of the following statements demonstrates the identity property of multiplication?
    14·1 answer
  • What are the common factors of 60 36 and 24?
    12·1 answer
  • If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate (in cm/min) at which the diameter d
    5·1 answer
  • GUYS I NEED HELP WHAT IS (8x[1 +(20 - 6)]} divided by 1/2
    5·1 answer
  • How would you write twenty-one thousand six hundred fifty-six in standard form?
    14·1 answer
  • Rewrite the expression using the distributive property and a common factor.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!