There are 30 total cards. 10 are yellow. What are the chances that you pull 2 yellow cards.

please read the steps

Step-by-step explanation:

To calculate percentage the odds of pulling 2 yellow cards out of 30 is 2/30. now we turn the denominater into 100

100/30= 3.33...

3.33*2=6.66.. (round to nearest tenth)

now you have 6.7/100 which is

6.7% chance

(if you need more precise number its 6.667%)

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart