First, you find the probability of getting each question right individually, then you multiply the two probabilities together.
(1/3) x (1/3) = 1/9
Answer:
40 pounds
Step-by-step explanation:
Given: Cost of a candy 
= 
per pound
Cost of candy 
Total amount of mixture of be produced = 
Selling price of mixture = 
Let´s x be the amount of 
to be mixed in the mixture.
∴ Cost of 
in the mixture = 12x
Next, Cost of 
in the mixture = 
And we know the cost of final mixture = 
Now, putting all the value in the equation
⇒ 
⇒ 
⇒ 
∴ 
∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.
Answer:
A
Step-by-step explanation:
I'm going to show you a little secret. It's called symbolab.com. You can solve almost any algebraic problem. It also gives a step by step explanation
The expression would be: x+8
The equation would be: x+8=
Answer:
27 chickens
Step-by-step explanation:
A chicken farmer also has cows for a total of 30 animals
Both animals have a total of 66 legs
Let a represent the number of chicken
Let b represent the number of cows
a + b= 30........equation 1
Since a chicken has only two legs and a cow has four leg then, the expression can be represented as
2a + 4b= 66........equation 2
From equation 1
a + b= 30
a = 30-b
Substitute 30-b for a in equation 2
2a + 4b= 66
2(30-b) + 4b= 66
60 - 2b + 4b= 66
60 + 2b= 66
2b= 66-60
2b= 6
b= 6/2
b= 3
Substitute 3 for b in equation 1
a + b = 30
a + 3=30
a= 30-3
a= 27
Hence the farmer has 27 chickens
