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
tatuchka [14]
3 years ago
13

You buy painting supplies for $12, and you charge $3 per person to paint faces. How many faces will you need to paint earn $15 i

n profit?
Mathematics
2 answers:
Anna007 [38]3 years ago
6 0

Answer:

First you do 12+15 which is 27.

Then you do 27/3 Which is 9

So you will need to paint 9 peoples faces to earn $15 Profit.

Step-by-step explanation:

IgorLugansk [536]3 years ago
5 0

Answer:

9 faces

Step-by-step explanation:

3*4=$12 in supplies

so that is 4 faces just to get your money's worth

then to have profit you would have to do another face otherwise you only broke even.

So then you have to do 5 more to get $15 profit so you would have to do a total of 9 faces

You might be interested in
Compare. Select &lt;, &gt;, or=.<br> 6.61? 6.610<br> The awnser is 6.610
Svetach [21]

Answer:

6.61=6.610

Step-by-step explanation:

6.61=6.610

After point we can increase no. Of zero.

8 0
3 years ago
Do these two in the figure appear to be similar?
iVinArrow [24]

Hello,

Please, see the attached file.

Thanks.

4 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form.
coldgirl [10]
Y= -1/2x - 4

hope this helps! :)
7 0
3 years ago
Assume that y varies inversely with x. if y=7 when x=-2, find y when x=7
melisa1 [442]

Answer:

y=-2

Step-by-step explanation:

The formula for inverse variation is

xy =k

if y=7 when x=-2, we can substitute these numbers in to find k

(-2)(7) =k

-14 =k

The equation becomes

xy = -14

Let x =7

7y = -14

Divide each side by 7

7y/7 = -14/7

y = -2

8 0
3 years ago
You need to construct an open-top rectangular box with a square base that must hold a volume of exactly 475 cm3. The material fo
zepelin [54]

Answer:

The dimensions of the box are:

x =  8,93 cm       and     h  =   5,95 cm

C(min) =  850,69 cents

Step-by-step explanation:

The volume of the box is:

V = x²*h          where    x is the side of the square base  and h the height

then    h  =  V/ x²  ⇒    h = 475 / x²

The total cost of box C is:

C  = C₁  +  4*C₂      Where C₁  and C₂  are the costs of the base and one lateral side respectevily

Then cost C =  8*x²   + 4* 6*h*x

The cost C as a function of x is

C(x)  =  8*x²  + (24* 475 /x² )*x

C(x)  =  8*x²  +  11400/x

Tacking derivatives on both sides of the equation

C´(x)  =  16*x -  11400/x²

C´(x)  =  0     ⇒    16*x  -  11400/x²  = 0

16*x³  =  11400     ⇒   x³  =  11400/16

x³ =  712,5

x  =  8,93  cm

and    h   =  475 / (8,93)²      ⇒      h  =  5,95  cm

C(min)  =  8*79,77  +  4* ( 8,93)*5,95

C(min)  =  638,16  +  212,53

C(min)  =  850,69 cents

To check if value x = 8,93 would make C(x) minimum we go to the second derivatives

C´´(x) =  16  +  22800/x³ > 0

Then we have a minimum of C at  x = 8,93

4 0
3 years ago
Other questions:
  • Type of Book
    5·1 answer
  • Colossus Added to six flags st. Louis in 1986, the Colossus is a giant Ferris wheel. Its diameter is 165 feet, it rotates at a r
    5·1 answer
  • Find the distance between (4, -5) and (-4, -5) on the coordinate plane
    6·1 answer
  • What is the Pythagorean Theorem? Please describe it in detaill!!
    6·1 answer
  • The city of Beijing has a population of more than 10 to the 7th power people. Write 10 to the 7th power without using an exponen
    10·2 answers
  • Multiply (2x^2-3x+5)(x^2+4x+1)
    14·1 answer
  • Write an equation of the line that passes through (1, 2) and is perpendicular to the line y=13x+4.
    8·2 answers
  • I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
    7·1 answer
  • Help please for 20 points i need rn
    12·1 answer
  • First one to answer this gets brainlest:<br> What is 5 * 4 + (6 / [ 2 + 1 ] ) *11
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!