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
Alexeev081 [22]
2 years ago
7

Anita is making a curtain to surround a table. She bought 3 1/4 yards of fabric. Her total cost was $13. What was the cost per y

ard? (show your process)
Mathematics
2 answers:
Ratling [72]2 years ago
7 0
3.25y=13. Isolate y by dividing both sides of the equation by 3.25. So 3.25y/3.25=13/3.25. Your answer is therefore 13/3.25, or 4
yan [13]2 years ago
4 0
<h2>Answer:</h2>

The cost per yard of the fabric is:

                        $ 4 per yard

<h2>Step-by-step explanation:</h2>

It is given that:

Anita bought 3 1/4 yards of fabric.

This means that the length of the fabric she bought is: 13/4 yards.

Also, the total cost of the fabric is: $ 13

This means that the cost of one yard of fabric is:

          Total cost divided by the length of the fabric she bought.

i.e. cost of one yard of fabric is:

        =\dfrac{13}{\dfrac{13}{4}}\\\\\\=\$\ 4\ per\ yard

You might be interested in
Tim needs a new car while he attends college in the United States for the next three years. The car he would like has a MSRP of
lilavasa [31]

Answer:

Its A. The initial out-of-pocket cost is less for the lease.

Step-by-step explanation:

I just got it right:)

4 0
2 years ago
Read 2 more answers
The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systo
PIT_PIT [208]

Answer:

The  estimate is

             52.02  <  \mu  < 55.78

Step-by-step explanation:

From the question we are told that

    The sample mean is \ = x  =  53.9

     The sample size is  n =  24

      The standard deviation is  \sigma =  5.6

 

Given that the confidence level is  90% the level of significance is mathematically represented as

           \alpha  =  100 - 90

            \alpha  =  10 \%

            \alpha  =  0.10

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table.The value is  

           Z_{\frac{\alpha }{2} } =Z_{\frac{0.10 }{2} } =  1.645

The reason we are obtaining critical value of    \frac{\alpha }{2} instead of    \alpha is because    \alpha

represents the area under the normal curve where the confidence level interval (  1 - \alpha ) did not cover which include both the left and right tail while  

\frac{\alpha }{2} is just the area of one tail which what we required to calculate the margin of error

NOTE: We can also obtain the value using critical value calculator (math dot armstrong dot edu)

Generally the margin of error is mathematically represented as

          E  =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{ \sqrt{n} }

substituting values

         E  =  1.645  *  \frac{5.6 }{ \sqrt{24} }

          E  =  1.880

The  estimate of how much the drug will lower a typical patient's systolic blood pressure(using a 90% confidence level) is mathematically represented as

         \= x  -  E  <  \mu  <  \= x  +  E

substituting values

         53.9  -  1.880  <  \mu  <  53.9  +  1.880

         52.02  <  \mu  < 55.78

5 0
2 years ago
Sin 31 / 2 cos 59<br>evatuate with out using table​
xxTIMURxx [149]

Answer:

Find the exact value using trigonometric identities.

0.13763793

8 0
2 years ago
Regan earned a total of 15 by selling 5 cups of lemonade how many cups of lemonade does Reagan need to sell and altar on $42 ass
Gemiola [76]
Idk if its right sorry

8 0
2 years ago
16.089 round to nearest 10
zepelin [54]
20 because 16 is greater than 15 and we round the number up.
8 0
2 years ago
Other questions:
  • Help please 20 pointss
    14·1 answer
  • 26 yards at $2 per foot
    15·2 answers
  • A circular swimming pool has a radius of 15 ft. There is a path all around that pool that is three feet wide. What is the circum
    5·1 answer
  • The complement of an angle is 53°. What is the measure of the angle?
    12·1 answer
  • What is the value of x? Triangle with angles labeled as 47 degrees, 71 degrees, and x. 62° 56° 134° 46°
    9·2 answers
  • I need help with this question please
    14·1 answer
  • Take Test w1: Whole N X
    13·1 answer
  • the product of 2 consecutive integers is 5 more than the square of the smaller integer.What is the value of the smaller integer?
    13·1 answer
  • PLEASE HELP I NEED THIS ASAP I WILL MARK YOU THE TOP!!!!
    8·1 answer
  • In kite WXYZ , m∠ZWY=43° and m∠XYW=12°.<br> What is m∠WXY?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!