Solve for 7,8,& 9. show your work

7. suppose y varies directly as x. if y=3 when x=15, then find x when y = 5.
8. suppose y varies directly as x. find x when y =10 if y=-7 when x=-14.
9.suppose y varies directly as x. if x=15 when y=12, find x when y=21.

what is the answer to this

6: 07 is your answer

step-by-step explanation:

step-by-step explanation:

hihi so drawing these 2 triangles is fairly simple. all that's left is finding the height of each one. luckily, we have a side length and an angle, so there is a trig function we can use to solve for the height. the easiest one to use would be tangent, since we have 2/3 things needed to find and the third needed is what we are solving for. tan(73°) * 30 ~= 98.13 and tan(73°) * 35 ~= 114.45