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
jasenka [17]
3 years ago
6

Ross and Annie do chores at their home acreage. Ross mows the acreage lawn every 12 days, and Annie bathes the dog every 21 days

. If Ross and Annie do their chores today, how many days will pass before they both do their chores again on the same day?
Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0
84 days will pay before they both do their chores again on the same day.
<span> <span> </span><span><span> Ross mows the lawn <span>      Annie bathes the dog </span>
</span> <span> 12 x 1 = 12                          21 x 1 =  21
</span> <span> 12 x 2 = 24                          21 x 2 =  42
</span> <span> 12 x 3 = 36                          21 x 3 =  63
</span> <span> 12 x 4 = 48                          21 x 4 =  84
</span> <span> 12 x 5 = 60                          21 x 5 = 105
</span> <span> 12 x 6 = 72                          21 x 6 = 126
</span> <span> 12 x 7 = 84                          21 x 7 = 147
</span> <span> 12 x 8 = 96                          21 x 8 = 168
</span> <span> 12 x 9  = 108                       21 x 9 = 189
</span> <span> 12 x 10 = 120                      21 x 10 = 210 </span></span></span>
You might be interested in
French Fries Onion Rings
olga2289 [7]

Answer:

170 that is the answer hope it's right

5 0
3 years ago
Read 2 more answers
In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc
Daniel [21]

Answer:

The  number is  N  =1147 students

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  281

     The standard deviation is  \sigma  =  34.4

    The sample size is  n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

      P(250 <  X <  305 ) =  P(\frac{ 250 - 281}{34.4 }  <  \frac{X - \mu }{\sigma }  < \frac{ 305 - 281}{34.4 }   )

Generally  

             \frac{X - \mu }{\sigma }  =  Z  (Standardized \ value \  of  \  X )

So  

         P(250 <  X <  305 ) =  P(-0.9012<  Z

       P(250 <  X <  305 ) = P(z_2 < 0.698 ) -  P(z_1 <  -0.9012)

From the z table  the value of  P( z_2 < 0.698) =  0.75741

                                         and  P(z_1 < -0.9012) =  0.18374

     P(250 <  X <  305 ) = 0.75741 - 0.18374

      P(250 <  X <  305 ) =  0.57

The  percentage is  P(250 <  X <  305 ) =  57\%

The  number of students that will get this score is

           N  = 2000 * 0.57

           N  =1147

6 0
3 years ago
Find the perimeter of the trapezoid
gregori [183]
Please check the picture.

7 0
3 years ago
Read 2 more answers
Now that the party is over, it’s time to help your friend write the thank you notes. You have $24 to purchase and mail 32 thank
Tasya [4]
0.75 Jordan went to the pond and died soon
6 0
3 years ago
Three students found the mean of the data set given. Their work is shown below. Choose the student who correctly found the mean.
Mars2501 [29]

Answer:

a.....Naeem's work

Step-by-step explanation:

i just took the the test i got it right

5 0
3 years ago
Read 2 more answers
Other questions:
  • The measure of a single angle in a regular octagon is (4x + 12)Á. Find the value of x. Show equations and all work that leads to
    14·2 answers
  • Given the table below, what linear equation matches the data?
    6·1 answer
  • If a hummingbirds beak is 20mm long, how long is it in centimeters
    8·1 answer
  • The difference of 4x and 3 is -6
    13·1 answer
  • Please answer this correctly
    9·2 answers
  • Please help me with this question!
    10·1 answer
  • Find angle B <br> It’s says I need 20Characters to ask the question so here u go
    8·1 answer
  • (◞ ‸ ◟) PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP ≧﹏≦
    13·1 answer
  • In the right triangle shown, measure of angle A equals 45 degrees and the measure of AB equals 12. How long is BC?
    9·1 answer
  • -5 1/2+6 3/4+(-4 1/4)=
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!