Which proportion would you use to solve this problem? nine is 4% of what number?

9/X = 4%/1

CHECK
CROSS MULTIPLY
9=4%X
DIVIDE BOTH SIDES BY 4%
9/4%= 4%X/4%
225=X

225 X 4% = 9
9=9

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.