James and john shared 63 marbles in the ratio 4: 5 how manzly marbles did john get

So if the ratio is 4:5, we know that this total amount of marbles must first be split into 9 equal parts:

Now we know that each 'part' is going to be equal to 7 marbles.

So then in the ratio, we are simply going to multiply each side by 7:

Therefore, since John had the part of '5' in the ratio, the amount of marbles that John got was 35.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°