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
Vlada [557]
3 years ago
11

Julia spent $60 on a book. the cost of the book was $16 less than twice what she spent on a backpack. how much did the backpack

cost?
Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
60 = 2x - 16
2x= 16+ 60 = 76

76 / 2 = 38

Hope this helps!
Best of luck
You might be interested in
In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2π/7 radians.
Hitman42 [59]
11.30
just convert it :)
6 0
3 years ago
Read 2 more answers
What's the estimate for 2-9
andrew11 [14]
The estimate between 2 and 9 is 7
5 0
3 years ago
3x+y=115x-y=21 Directions: Solve each system of equations by elimination. Clearly identify your solution.
olchik [2.2K]

To solve, we will follow the steps below:

3x+y=11 --------------------------(1)



5x-y=21 ------------------------------(2)

since y have the same coefficient, we can eliminate it directly by adding equation (1) and (2)

adding equation (1) and (2) will result;

8x =32

divide both-side of the equation by 8

x = 4

We move on to eliminate x and then solve for y

To eliminate x, we have to make sure the coefficient of the two equations are the same.

We can achieve this by multiplying through equation (1) by 5 and equation (2) by 3

The result will be;

15x + 5y = 55 ----------------------------(3)

15x - 3y =63 --------------------------------(4)

subtract equation (4) from equation(3)

8y = -8

divide both-side of the equation by 8

y = -1

8 0
1 year ago
g A milling process has an upper specification of 1.68 millimeters and a lower specification of 1.52 millimeters. A sample of pa
adoni [48]

Complete Question

A milling process has an upper specification of 1.68 millimeters and a lower specification of 1.52 millimeters. A sample of parts had a mean of 1.6 millimeters with a standard deviation of 0.03 millimeters. what standard deviation will be needed to achieve a process capability index f 2.0?

Answer:

The value required is  \sigma =  0.0133

Step-by-step explanation:

From the question we are told that

   The upper specification is  USL  =  1.68 \ mm

    The lower specification is  LSL  = 1.52  \  mm

     The sample mean is  \mu =  1.6 \  mm

     The standard deviation is  \sigma =  0.03 \ mm

Generally the capability index in mathematically represented as

             Cpk  =  min[ \frac{USL -  \mu }{ 3 *  \sigma }  ,  \frac{\mu - LSL }{ 3 *  \sigma } ]

Now what min means is that the value of  CPk is the minimum between the value is the bracket

          substituting value given in the question

           Cpk  =  min[ \frac{1.68 -  1.6 }{ 3 *  0.03 }  ,  \frac{1.60 -  1.52 }{ 3 *  0.03} ]

=>      Cpk  =  min[ 0.88 , 0.88  ]

So

         Cpk  = 0.88

Now from the question we are asked to evaluated the value of  standard deviation that will produce a  capability index of 2

Now let assuming that

         \frac{\mu - LSL  }{ 3 *  \sigma } =  2

So

         \frac{ 1.60 -  1.52  }{ 3 *  \sigma } =  2

=>    0.08 = 6 \sigma

=>     \sigma =  0.0133

So

        \frac{ 1.68  - 1.60 }{ 3 *  0.0133 }

=>      2

Hence

      Cpk  =  min[ 2, 2 ]

So

    Cpk  = 2

So    \sigma =  0.0133 is  the value of standard deviation required

3 0
3 years ago
If a triangle is 4 feet on one side, 6 feet on another side, what is the measurement of the third side?
tino4ka555 [31]
It depends on what type of Triangle or what the volume or area is. This question is missing information.
7 0
4 years ago
Other questions:
  • (-2/3)(1 2/5)(-1 5/7)
    11·1 answer
  • Which relation below represents a one to one function
    7·2 answers
  • What is 3(x-6)+4x+18
    12·2 answers
  • Which polygon(s) below are similar (not congruent) to polygon A? Mark the similar polygon(s) with true
    10·1 answer
  • PLEASE HELP 10 POINTS
    12·2 answers
  • What is the y-value in the solution to this system of linear equations?
    13·1 answer
  • Please help i don't know
    15·2 answers
  • What symbol does this stand for *
    8·2 answers
  • frankie earned $43,720 last year. if social security tax is $6.20 tax per $100 earned, then how much social security did they pa
    11·1 answer
  • Which fraction is equivalent to <br> 2<br> 10
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!