geno3141

$3.00 is a fixed amount; it's only paid once so it should stand all by itself and not be multiplied by anyhing.

Therefore the first equation should be eliminated.

The total fare is $7.50 so this is what the equation equals. Therefore, the fourth equation should be eliminated.

We're dealing with $3.00 and $0.75; so we need an equation which has 3 and 0.75; this is equation three.

Equation two is eliminated since the 75 has no decimal point in front of it, so it means $75.00.

One way to find this is to find  260/360^ths  of the area of the circle and add the area of the triangle.

Portion of the circle:   (260/360)·pi·8.35²  =  158.195

Triangle:  Area  =  ½·a·b·sin(C)  =  ½·8.35·8.35·sin(100)  =  34.332

Adding these two areas:  192.5

6x - 4y  =  a     --->     divide by 2     --->       3x - 2y  =  a/2

6y - 9x  =  b     --->    -9x + 6y  =  b     --->     divide by -3     --->     3x - 2y  =  b/-3

Since you have  3x - 2y  =  a/2  and  3x - 2y  =  b/-3,     a/2  =  b/-3

   --->   multiply both sides by 2/b     --->     a/b  =  2/-3  or   -2/3

You will need to write what "you have learned" ...

We might be able to write what we feel that you should have learned, but we can't write what you have learned.

Winnie's lemonade:  450 gallons of a 7 water : 2 lemon juice ratio

Add the 7 parts of water to the 2 parts of lemon juice to get a total of 9 parts.

Therefore the 450 gallons have (2/9)·450 gallons  =  100 gallons of lemon juice

                                            and (7/9)·450 gallons  =  350 gallons of water.

Lizzie needs to have 600 gallons of water for every 100 gallons of lemon juice.

There are already 350 gallons of water; she will need to add another  600 - 350  =  250 gallons of water.

This line passes through the points  (0, 8)  and  (3, 4).

slope          =  m  =  ( y₂ - y₁ ) / ( x₂ - x₁ )  =  ( 4 - 8 ) / ( 3 - 0 )  =  -4/3

y-intercept  =  8

y  =  mx + b     --->     y  =  (-4/3)x + 8

Being horizontal, the slope of this line is zero. Its y-intercept is -8.

Equation:  y  =  0x - 8

or just:      y  =  -8

When you say that there are 8 players taking biology, do you mean that they are taking only biology, or that some of them are also taking chemistry?

Three of eight sectors do not move the token; this area is 35.9 in².

To find the radius of the spinner:      A  =  pi · r² 

                                                     35.9  =  (3/8) · pi · r²

                                                     35.9  =  1.1781 · r² 

                                                    30.73  =  r²

                                                            r  =  5.5 in

I can't get to either of these two sites.

I have avastI to protect my computer from viruses; avast tells me that they abort my attempt because of a possible threat.