There is a scientific law called the Law of Conservation of Mass, discovered by Antoine Lavoisier in 1785. In its most compact form, it states: matter is neither created nor destroyed. ... the total amount of mass and energy in the universe is constant.
Experimental probability is the probability that is gotten frm experiment
theoretical is from calculating it with math
so we look at the ones with experimental probabiilty and cross the anwers out with theoretical probaility (cross out B and D)
look at others
probaility is (desired outcomes )/(total possible outcomes)
find total possible by adding
62+38=100
head=62
tails=38
proability of
heads=62/100=62%
tails=38/100=38%
look at choices A and C
A, 32% heads
C, 62% heads
the answer is obviously C since 68% heads is correct
answer is C
The coordinates of the point of intersection are read from the graph as ...
(3, 5).
Answer:
She catered for 40 people.
Step-by-step explanation:
According to the information given, you can write an equation that indicates that 30 people multiply for its cost that is $10 plus the number of people after 30 for its cost that is $9 is equal to $390. According to this, the equation is:
10(30)+9x= 390, where
x= number of people after 30
Then, you can solve for x:
300+9x= 390
9x=390-300
9x= 90
x=90/9
x=10
The answer is that she catered for 40 people, 30 people at a cost of $10 and 10 people for a cost of $9.
