there is a door of dimension 2 metre X 1.5 metre and to Windows of dimension 1 metre X 1.5 metre in a room having length 7 m and breadth 5 metre if the total cost of painting on the four walls at the rate of Rs 7.50 per square metre is Rs 495 find the height of the room.

Answer

This should be it, ask me for any concerns that you may have

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.