10% of 90 is 9. You can try cross multiplying.
Answer:
5
Step-by-step explanation:
They are looking for the y intercept. I am assuming that the scale on the x and y axis are counting by 1's. If you start at the origin (0,0) and count up, you will see that the dotting line is going through (0,5)
Answer:
1/4
Step-by-step explanation:
there is 3 black marbles and 3+4+5=12 total marbles. 3/12=1/4
Answer: In right triangle XZW, the height WY is the geometric mean of segments ZY and XY.
Hence,
4^2=3 x a,
a=16/3 un.
