answer.
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
ss7ja [257]
2 years ago
15

A craft store buys 50 yards of satin ribbon for 13.50. The store. The store sells the ribbon by the foot.A customer can purchase

5 feet of ribbon for $0.80. How much profit does the craft store earn if it sells 45 yards of the ribbon and scraps the rest?
Mathematics
1 answer:
Pie2 years ago
6 0
Convert 45 yards of ribbon to feet through proper conversion factor. 

   (45 yards)(3 ft / 1 yard) = 135 feet

Divide this number by 5 to determine the number of 5-ft ribbon that customers can purchased.

     n = 135 ft / 5 ft = 27

Then, multiply by $0.80.

    R = (27)($0.80) = $21.6

The profit is equal to $21.6 and $13.50,

     P = $21.6 - $13.50 = $8.1

<em>Answer: $8.1</em>
You might be interested in
Which will result in a perfect square trinomial? (3 x minus 5)(3 x minus 5) (3 x minus 5)(5 minus 3 x) (3 x minus 5)(3 x + 5) (3
Sphinxa [80]

Answer:

(3x-5)*(3x-5)

Step-by-step explanation:

Perfect square trinomial is defined by the follow way

(a+b)^{2}=a^{2} +2ab+b^{2}

Now we can rewrite (a+b)^{2} as (a+b)(a+b)  because a squared add is equal to multiply the add by itself one time

if we make a=3x and b=-5 we can see tha the first answer is the only option that could be a  perfect square triomial

6 0
2 years ago
Read 2 more answers
Te probability is 0.5 that an artist makes a craf item with satisfactory quality. Assume the production of each craf item by thi
mina [271]

Answer:

The probability that at most 3 attempts are required to produce a craft item with satisfactory quality is 0.9375

Step-by-step explanation:

Let E be a random variable denoting the event that an artist makes a craft item with satisfactory level.

Then the random variable E follows a Geometric distribution.

A Geometric distribution is defined as the number of failures (<em>k</em>) before the first success.

The probability function of Geometric distribution is:

P(X=k)=(1-p)^{k}p, <em>p</em> = Probability of success and <em>k</em> = 0, 1, 2, 3...

The probability of success is, <em>p</em> = 0.5 and the number of failures is, <em>k</em> = 3.

Compute the probability of at most 3 attempts before the first success is:

P(X\leq 3) =P(X=3)+P(X = 2)+P(X=1) +P(X = 0)\\=[(1-0.5)^{0}*0.5]+[(1-0.5)^{1}*0.5]+[(1-0.5)^{2}*0.5]+[(1-0.5)^{3}*0.5]\\=0.9375

Therefore, the probability that at most 3 attempts are required to produce a craft item with satisfactory quality is 0.9375.

6 0
2 years ago
Jenna’s method: Mia’s method: 5(30 + 4) 5(30 + 4) (5)(30) + (5)(4) 5(34) = 170 150 + 20 = 170 Explain why both Jenna and Mia arr
seraphim [82]

Answer:

Both people did the same type of general question, but Jenna's method uses the distributive property to do it mentally.

Step-by-step explanation:

Jenna's Method: Uses distributive property to break it all down and do it mentally.

Mia's Method: She broke the equation down so much that the answer will be more complex to find.

3 0
2 years ago
If a boatman rows his boat 35km up stream and 55km downstream in 12 hours and he can row 30km upstream and 44 km downstream in 1
MariettaO [177]

To answer this item, we let x be the speed of the boat in still water. The speed of the current, we represent as y.

When the boat travels upstream or against the current, the speed is equal to x – y and x + y if it travels downstream or along with the current.

The time it takes for the an object to travel a certain distance is calculated by dividing the distance by the speed.

First Travel:    35 / (x – y)   + 55 / (x + y) = 12

Second travel: 30 / (x – y)   + 44 / (x + y) = 10

Let us multiply the two equations with the (x-y)(x+y)

This will give us,

              35(x + y) + 55(x – y) = 12(x-y)(x+y)

              30(x + y) + 44(x – y) = 10(x-y)(x+y)

Using dummy variables:

Let a = x + y and b be x – y

                35a + 55b = 12ab

                30a + 44b = 10ab

From the first equation,

                     b = 35a/(12a – 55)

Substituting to the second equation,

                30a + 44(35a/(12a – 55)) = 10a(35a/(12a-55))

The value of a is 11.

              b = 35(11)/(12(11) – 55))

              b = 5

Putting back the equations,

        x + y = 11

       x – y = 5

Adding up the equations give us,

  2x = 16

   <em> x = 8 km/hr</em>

The value of x, the speed of the boat in still water, is 8 km/hr. 

3 0
2 years ago
Read 2 more answers
Which of the following is the radical expression of a to the four ninths power?
iogann1982 [59]

Step-by-step explanation:

\sqrt[n]{a^m}=a^\frac{m}{n}\\\\\large\huge\boxed{a^\frac{4}{9}=\sqrt[9]{a^4}}

3 0
2 years ago
Read 2 more answers
Other questions:
  • In the figure, AB║CD and ∠EIA is congruent to ∠GJB Complete the following statements to prove that ∠IKL is congruent to ∠DLH.
    8·2 answers
  • Tom collects black and white model cars. he has 72 in all. he has eight more than three times as many black ones than white ones
    11·1 answer
  • Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. David invested $220
    6·2 answers
  • Playing tennis burns energy at a rate of about 25 kJ/min. Cycling burns energy at about 35kJ/min. Hans exercised by playing tenn
    5·1 answer
  • Melissa had 7 pages of homework! She only completed 5 before her soccer practice. Choose the division problem that shows what fr
    6·1 answer
  • A construction worker needs to put in a rectangular window in the side of a building. He knows from measuring that the top and b
    12·1 answer
  • Circle A is shown. Tangents L M and N M intersect at point M outside of the circle. Arc L N is 270 degrees. In the diagram of ci
    5·2 answers
  • A caplet contains 325 mg of medication. How many caplets contain 975 mg of medication?
    8·1 answer
  • A ventilation fan is installed in a vertical position. As the fan rotates, the distance, in inches, between the tip of a fan bla
    15·2 answers
  • Question 2 of 20, Step 1 of 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!