Answer 30 points! -
the ratio of blue marbles to red marbles in a bucket is 63 to 45. if there are 648 marbles, how many marbles are blue and how many are red? complete the given ratio table to solve the problem.

blue 63
red 45
total 108 216 648

378 blue marbles, 270 red marbles
385 blue marbles, 263 red marbles
270 blue marbles, 378 red marbles
315 blue marbles, 225 red marbles

the answer is 378: 270

this is how you work it out 63(6) + 45(6)= 648

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )