. A teacher used a lever in physics class to lift a 52 pound object with only 16 pounds of force. If the weight lifted in pounds, y, varies directly with the force applied to the lever in pounds, x, then how many pounds will the lever lift if 28 pounds of force is used?

the thermometer is precise but not accurate

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

v,jhvljh,b.b; hk; ljujb,vuvccklokll; k,m,km,

step-by-step explanation: