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
Nostrana [21]
3 years ago
7

peter and his four brothers combined all of their money to buy a video game. if 20%of the total money is peters and $12.00 of th

e total is peters how much do all five brothers have combined

Mathematics
1 answer:
Tamiku [17]3 years ago
5 0

Answer:

60$ (b)

Step-by-step explanation:

we know that 20% of the total is peters - and peter has 12 dollars. We know that 20% 5 times gets us to 100%. So we multiply 12 by 5 to get a total answer of 60$

You might be interested in
Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software,
vichka [17]

Answer:

A(-1,0) is a local maximum point.

B(-1,0)  is a saddle point

C(3,0)  is a saddle point

D(3,2) is a local minimum point.

Step-by-step explanation:

The given function is  

f(x,y)=x^3+y^3-3x^2-3y^2-9x

The first partial derivative with respect to x is  

f_x=3x^2-6x-9

The first partial derivative with respect to y is  

f_y=3y^2-6y

We now set each equation to zero to obtain the system of equations;

3x^2-6x-9=0

3y^2-6y=0

Solving the two equations simultaneously, gives;

x=-1,x=3  and y=0,y=2

The critical points are

A(-1,0), B(-1,2),C(3,0),and D(3,2).

Now, we need to calculate the discriminant,

D=f_{xx}(x,y)f_{yy}(x,y)-(f_{xy}(x,y))^2

But, we would have to calculate the second partial derivatives first.

f_{xx}=6x-6

f_{yy}=6y-6

f_{xy}=0

\Rightarrow D=(6x-6)(6y-6)-0^2

\Rightarrow D=(6x-6)(6y-6)

At A(-1,0),

D=(6(-1)-6)(6(0)-6)=72\:>\:0 and f_{xx}=6(-1)-6=-18\:

Hence A(-1,0) is a local maximum point.

See graph

At B(-1,2);

D=(6(-1)-6)(6(2)-6)=-72\:

Hence, B(-1,0) is neither a local maximum or a local minimum point.

This is a saddle point.

At C(3,0)

D=(6(3)-6)(6(0)-6)=-72\:

Hence, C(3,0) is neither a local minimum or maximum point. It is a saddle point.

At D(3,2),

D=(6(3)-6)(6(2)-6)=72\:>\:0 and f_{xx}=6(3)-6=12\:>\:0

Hence D(3,2) is a local minimum point.

See graph in attachment.

3 0
3 years ago
65% of 150 estimate percent
Ksju [112]

Answer:

97.5

Brainliest answer pls

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do we find x and y intercepts
IRISSAK [1]

Answer:

To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y. ...

To find the x-intercept, set y = 0 \displaystyle y=0 y=0.

To find the y-intercept, set x = 0 \displaystyle x=0 x=0.

5 0
3 years ago
Given the system of linear equations:
ruslelena [56]
6x+7y=32 and 2x+5y=16

if you add the two equations you get the first answer and if you subtract the two equations you get the second answer
3 0
2 years ago
the table below shows the account balances for four different customer accounts at the city bank.which account balance represent
Sonbull [250]

Answer:

ARE THERE ANY ANSWER CHOICES?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Explain how to find the greatest number of identical arrangements that can be made with 54 roses and 42 tulips with no flowers l
    12·2 answers
  • Given f(x) = 4x4 + 5x3 – 15x2 – 45, find f(–3).
    5·2 answers
  • Find the value of the x for the following 5x - 7 = 18
    11·2 answers
  • Simplify log (x2-y2)- log (x-y)=
    13·2 answers
  • Math
    13·2 answers
  • To investigate whether there is a significant difference between two regions of a state in the percent of voters who intend to v
    15·1 answer
  • Find the volume of the cone. Round your answer to the nearest hundredth.
    9·1 answer
  • How do I solve 2x^2-32=0 using the square root method?
    10·2 answers
  • WILL GIVE BRIANLIEST
    15·1 answer
  • Please select the best answer from the choices provided.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!