Need same math paper but the back now i hope your able to read it cleary i need with hw

Answers:

4) r = √[V/(πh)]; d ≈ 5 in

5) 1.25x + 2.50y = 25.00 ; 11 combinations

Step-by-step explanation:

4) (a) Formula for radius

V = πr²h     Divide each side by πh

V/(πh) = r²     Take the square root of each side.

r = √[V/(πh)]

(b) Diameter of tuna can

(i) Data:

V = 66 in³

h = 3.3 in

(ii) Calculations

r = √[V/(πh)]

  = √[66/(π × 3.3)]

  = √(20/π)

  = 2√(5/π)

d = 2r

  = 4√(5/π)

  ≈ 5 in

5) Hot dogs and hamburgers

(a) The equation

Let x = the number of hot dogs

and y = the number of hamburgers

Then

1.25x + 250y + 7 × 0.50 = 28.50

     1.25x + 250y + 3.50 = 28.50     Subtract 3.50 from each side

                1.25x + 2.50y = 25.00

(b) Plot the graph

 Let x = 0. Then

2.50y = 25.00     Divide each side by 2.50

       y = 10

Plot a point at (0, 10).

Let y = 0. Then,

1.25x = 25.00     Divide each side by 1.25

       x = 20

Plot a point at (20, 0).

Draw a straight line between the two points.

Your graph should look like the one below.

(c) Hot dog/hamburger combinations

The possible hot dog/hamburger (x/y) combinations are:

0x + 10y, 2x + 9y, 4x + 8y, 6x + 7y, 8x + 6y, 10x + 5y, 12x + 4y, 14x + 3y, 16x + 2y, 18x + 1y, 20x + 0y

Thus, there are 11 different combinations that Zeke and his friends can buy for $28.50.

It works like this, because one hamburger costs $2,50 and a hamburger half as much.

You can replace one hamburger with two hot dogs (or vice versa) and still spend the  same amount of money,.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: