What is the answer and can someone explain this

z=15

<A=168

<B=12

Step-by-step explanation:

supplementary means two angles that equal 180

so we can set up an equation like this, (10z+18)+(5z-63)=180

calculate to find z

z=15

then to find the angles put 15 into the equations where z is.

10(15)+18=168

5(15)-63=12

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation:

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.