Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours. When Maya biked for 3 hours and then ran for 1 hour and 30 minutes, what was her average speed?

Answer:

it is 10

Step-by-step explanation:

Answer:

he got ten cookies because since they play for 3 hours a night you do 15/3 to get 5 nights. since his friends gets 2 cookies everyday he is there 5*2 is 10 cookies last week

Step-by-step explanation:

i was reading this i was like what do the video games have to do with it

Answer:

i really want to help but i think it might be D

Step-by-step explanation:

Answer:

(1 , 7)

Step-by-step explanation:

(1 , 7)          (5 , 7)

(1 , 3)          (5 , 3)

Answer:

42

Step-by-step explanation:

We know that in the triangle, there are 3 values. 2 of them are y and 1 of them is unknown.

So, in order to find the value of the unknown number, they gave us an angle supplementary to the unknown.

Supplementary angles are angles that add up to 180 degrees. So the equation for that would be x+88=180.

By subtracting from both sides, we get x=92. So, the unknown angle is 92.

To solve for y, we have to do the same thing, but since we have 2 y's the equation will be 2y+92=180. (92 is the interior angle, aka the unknown one)

Solve:                                            -92 -92

                                                      2y=88

                                                      /2   /2

                                                       y=42

Hence, y is equal to 42.

(edit: sorry they don't line up correctly)

Answer: the answer is B

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

They both equal 3.08

The decimal is moved one to the right on both so the answer will be the same

Answer:

D. 209.2 ÷ 68

I hope this helps!

Answer:

z= -3

Step-by-step explanation:

[tex]\frac{1}{2} z[/tex] = [tex]\frac{-3}{4} + \frac{1}{4} z[/tex]

[tex]\frac{1}{2} z - \frac{1}{4} z[/tex] = [tex]\frac{-3}{4}[/tex]

[tex]\frac{2z - z}{4} = \frac{-3}{4}[/tex]

[tex]\frac{z}{4} = \frac{-3}{4}[/tex]

4z = -3×4

4z = -12

[tex]\frac{4z}{4} = \frac{-12}{4}[/tex]

z = -3

Hope this helps!!!

The value of z in the equation (1/2)z = - 3/4 + (1/4)z is 3/2.

An equation is written in the form of variables and constants separated by the operation of multiplication and division,

An equation states that terms in different forms on both sides of the equality sign are equal.

Multiplication and division do not separate the terms of an equation.

given, (1/2)z = - 3/4 + (1/4)z and we have to find the value of z or solve for z.

∴ (1/2)z = - 3/4 + (1/4)z.

(1/2)z - (1/4)z = 3/4.

(1/2)z = 3/4.

z = (3/4)×(2/1).

z = 6/4.

z = 3/2.

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Answer:

The zeros are approximately -0.433 and 3.352

Step-by-step explanation:

The easiest way to find the real zeros of a polynomial is to plot it and check where y = f(x) = 0. In the picture attached, the plot of f(x)= x^4 -5x^3 +6x^2 -x -2 is shown. Only two real zeros were found.

Answer:

it’s b

Step-by-step explanation:

you’re welcome

Answer:

40 more paintings in order to maximize sales making a total of 60 paintings

Step-by-step explanation:

Let x= no.of copies above 20

Total Sales(x) = (number of copies)(price per copy)

Sales (x)= (20 +x)(100 –x)

Open bracket

=1200-20x+100x-x^2

=1200+80x-x^2

Derivative of the sales

80-2x=0

80=2x

Divide both sides by 2

40=x

Because Sales(x)= –2, this is maximal by the second derivative test

The artist should make 40 more paintings in order to maximize sales making a total of 60 paintings.

The artist 60 copies should he make to maximize his sales

The artist can sell 20 copies at $100 each.

So, the total sales is:

Total =(20) * (100)

For each additional copy he makes, the value of each painting reduce by a dollar.

So, the total sales becomes

Total = (20 + x) * (100 - x)

Rewrite as:

[tex]y = (20 + x) * (100 - x)[/tex]

Expand

[tex]y = 2000 - 20x + 100x - x^2[/tex]

Evaluate the like terms

[tex]y = 2000 +80x - x^2[/tex]

Differentiate

[tex]y' = 80 - 2x[/tex]

Set to 0

[tex]80 - 2x = 0[/tex]

Collect like terms

[tex]- 2x = -80[/tex]

Divide both sides by -2

[tex]x = 40[/tex]

Recall that the initial copies is 20.

So, the new copies would be:

New = 20 + 40

New = 60

Hence, the artist 60 copies should he make to maximize his sales

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Answer:

47.61$

Step-by-step explanation:

hope this helps please give me brainiest

Answer:

37°

Step-by-step explanation:

As we know the sum of angles of a triangle is 180  degrees.

Therefore,

angle A + angle B + angle C = 180°

In the given picture two angles are given and we have to find out the third angle.

x° + 45° + 98° = 180°

x° + 143° = 180°

x° = 180° - 143°

x° = 37°

The value of x in the triangle shown is 37°.

Answer:

SI = prt / 100

SI = (1000 x 3 x 6)/100

SI = 180

Amount = 1000 + 180 = 1180

Answer:

I believe that a=the answer is C if It's not then probably A

Step-by-step explanation:

Answer:

the answer is

b.no

Step-by-step explanation:

Answer:

A 256 units 3

Step-by-step explanation:

The volume of the cylinder given below is 256π units .

Given,

Radius of cylinder = 8 units

Height of cylinder = 4 units

Now,

Volume of cylinder is given by

V = π×r²×h

r = radius of base

h = height of cylinder

So,

Substitute the values in the formula,

V = π × 8² ×4

V = π × 64 × 4

V = 256π units .

Thus the volume of the cylinder is 256π units .

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Answer:

-625

Step-by-step explanation:

-1/5 x 5^5=-625

hope this helped stay safe!

Answer:

625

Step-by-step explanation:

First Step:

Solve [tex]5^{5}[/tex] =3,125

Then:

Multiply 3,125 by [tex]\frac{1}{5}[/tex]

Last:

Solve!

Answer: 625

Hope this helped :)

Answer:

the answer is 141.3 cubic meters ( if you use 3.14 for pi)

Step-by-step explanation:

the volume equation of a cylinder is

V=  π[tex]r^{2} h[/tex]

we have to change the 6 meters to 3 meters because the equation for the volume of a cylinder wants the radius not the diameter

V= 3.14 × [tex]3^{2}[/tex] × 5

that equals 141.3

Answer:

141.4 meters3

Step-by-step explanation:

h\hspace{3px}=\hspace{3px}5\hspace{30px}d\hspace{3px}=\hspace{3px}6

h=5d=6

identify variables

r=

r=

\,\,3

3

radius is half of the diameter

V=

V=

\,\,\pi r^2h

πr  

2

h

use volume of a cylinder formula

V=

V=

\,\,\pi(3)^2(5)

π(3)  

2

(5)

substitute variables into formula

V=

V=

\,\,141.371669412

141.371669412

multiply

V=

V=

\,\,141.4\text{ meters}^3

141.4 meters  

3

round to the nearest tenths place

Answer:These techniques for elimination are preferred for 3rd order systems and higher.  They use "Row-Reduction" techniques/pivoting and many subtle math tricks to reduce a matrix to either a solvable form or perhaps provide an inverse of a matrix (A-1)of linear equation AX=b.  Solving systems of linear equations (n>2) by elimination is a topic unto itself and is the preferred method.  As the system of equations increases, the "condition" of a matrix becomes extremely important.  Some of this may sound completely alien to you.  Don't worry about these topics until Linear Algebra when systems of linear equations (Rank 'n')  become larger than 2.

explanation Step-by-step explanation:ust to add a bit more information, "Elimination" Can have a variety of other interpretations.  Elimination techniques typically refer to 'row reduction' to achieve 'row echelon form.'  Do not worry if you have not heard of these terms.  They are used in Linear Algebra when referring to "Elimination techniques"

Just to add a bit more information, "Elimination" Can have a variety of other interpretations.  Elimination techniques typically refer to 'row reduction' to achieve 'row echelon form.'  Do not worry if you have not heard of these terms.  They are used in Linear Algebra when referring to "Elimination techniques"

Gaussian Elimination

Gauss-Jordan Elimination

LU-Decomposition

QR-Decomposition

These techniques for elimination are preferred for 3rd order systems and higher.  They use "Row-Reduction" techniques/pivoting and many subtle math tricks to reduce a matrix to either a solvable form or perhaps provide an inverse of a matrix (A-1)of linear equation AX=b.  Solving systems of linear equations (n>2) by elimination is a topic unto itself and is the preferred method.  As the system of equations increases, the "condition" of a matrix becomes extremely important.  Some of this may sound completely alien to you.  Don't worry about these topics until Linear Algebra when systems of linear equations (Rank 'n')  become larger than 2.

Substitution is the preferred method for 2 equations in 2 unknowns.  The constants are unimportant other than having a non-zero determinant.  It is always easy to find multiplicative factors using LCMs of one variable or the other to allow substitution into the other equation:

Example:

4X + 5Y = 9

5X -  4Y = 1

Notice that 20 is a LCM of either the X or Y variable.  So multiply the first by 4 and the second by 5 and then adding the two (Y's will drop out allowing for substitution)

4(4X + 5Y = 9)

5(5X -  4Y = 1)  

Multiplying to produce the LCM factors:

16X + 20Y = 36

25X -  20Y = 5

Adding the equations

41X = 41

X = 1

Substitution into either equation yields

Y = 1

Answer:

yes

look at each one of the sides

the x row counts by 1

1 + 1 = 2,  2 + 1 = 3,   3 + 1 = 4

the y row counts by 2

3 + 2 = 5,   5 + 2 = 7,    7 + 2 = 9

( Hope this helps :D)

Answer:

the plot shows he had a speed of 0.20 miles but the longer he travels the slower he gets, so his last speed is 0.17 miles a minute

Step-by-step explanation:

Answer:45.45

Step-by-step explanation:

First add 15.25 and 13.8 together and with hat answer then you will go ahead and add the answer and 16.4 together and that will give you your total hope this helps

Answer: 71

Step-by-step explanation:

Answer:

if this is the circle than its B. 67 degrees

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

F = 36

G = 4

We know that The area is multiplied by the scale factor squared

F * (SF) ^2 = G

36 (SF) ^2 = 4

Divide each side by 36

36/36 (SF) ^2 = 4/36

(SF) ^2 = 1/9

Take the square root of each side

sqrt((SF)^2) = sqrt(1/9)

SF = 1/3

The scale factor is 1/3

Answer:

(3,6)

Step-by-step explanation:

2x-3y = -12

x+y=9. Solve for either y or x

-x. -x

y = -x + 9. Substitute this for the y

2x-3(-x+9)= -12

2x +3x-27 = -12. Add like terms

5x -27 = -12

+27. +27. Inverse operations

5x = 15

÷5. ÷5

x = 3

x + y = 9

3 + y = 9. Substitute 3 for x

-3. -3. Inverse operations

y = 6

-------------------------------------------------------------------

4 (2m – 6) – 3p – 2m + 8

Expand 4 (2m – 6):

8m - 24– 3p – 2m + 8

Simplify 8m - 24– 3p – 2m + 8:

Group like terms:

8m - 2m - 3p - 24 + 8

Add similar elements:

6m - 3p - 24 + 8

Add subtract the numbers:

6m - 3p - 16

Your Answer Is 6m - 3p - 16

plz mark me as brainliest if this helped :)

Answer:

206 miles

Step-by-step explanation:

People generally work 5x a week so.. (15000 / 52)

52 indicates the amount of weeks in a year.

In total, that is 288.4 miles a week. Now, we're assuming she doesn't work on the weekend so we divide 288.4 by 7. That is 41.2 miles a day. Now, you times 41.2 by 5 and your answer should be 206 miles a week.

Answer:

D

Step-by-step explanation:

The figure is a rectangular pyramid. The cross section is perpendicular to the rectangular base and passes through the top vertex of the figure. A triangle that does not have the same dimensions as one of the faces is formed. The sides of the new triangle are the heights of the triangles on the faces of the pyramid, and that is why their dimensions are different.

Answer:

d

Step-by-step explanation:

Answer:

[tex]381.5\,\,\,ft[/tex]

Step-by-step explanation:

Given:  Figure

To find: distance from the right center field fence to third base

Solution:

In a right angled triangle,

using Pythagoras theorem, square of hypotenuse is equal to sum of squares of base and perpendicular.

In ΔBAC,

[tex]BC^2=AB^2+AC^2\\(392)^2=x^2+(90)^2\\153664=x^2+8100\\153664-8100=x^2\\145564=x^2\\\sqrt{145564}=x\\381.5\,\,\,ft=x[/tex]

So,

distance from the right center field fence to third base is 381.5 foot.

Answer:

All rectangles are squares, All parallelograms are quadrilaterals,

Answer:

all squares are rhombuses, all parallelograms are quadrilaterals

Step-by-step explanation:

this is what is true

Answer:

6.9

Step-by-step explanation:

sin(52)=x

x=7sin(52)

Answer:

Finding the volume of a cylinder is similar to finding the volume of a prism because they share the same formula, that is:

V = base area x height

Hope this helps!

:)

Answer:

Volume of a prism is base area × height

Base of a cylinder is a circle,

Base area = pi× r²

Volume of cylinder = pi × r² × h

Which is the same as base area × height