This can be solved using a system of equations.
Subtract y from both sides.
Substitute:
Subtract 80 from both sides:
Divide both sides by 5:
Substitute.
Answer:
80/121
Step-by-step explanation:
For simplicity,
Probabilities of getting a red, a blue or a green in a single spin are, respectively, 4/11, 4/11 & 3/11.
Therefore, probabilities of getting 2 reds, 2 blues or 2 greens in 2 spins are, 16/121, 16/121 & 9/121 respectively.
Then, total probability of getting same colour both times would be 16/121 + 16/121 + 9/121 = 41/121.
Any other option would result in 2 different colours. Thus, the probability of getting two different colours in 2 spins = 1 - 41/121 = 80/121.
Answer:
Reason 3. Congruence of segments is reflexive
Reason 4. SSS
Answer:
3
Step-by-step explanation:
The equation
p = 9 + 1.5x
gives us the price of pizza depending on toppings
Where
p is the cost of pizza
x is the number of toppings
Now, Daniel took a pizza that costed 13.50. We need to find number of toppings. We can put 13.50 into p (since this is the cost) and solve for x to find number of toppings. Shown below:
So, Daniel got 3 toppings
Answer:
x^2-5x+10
Step-by-step explanation:
As they are two zeros and the standard equation is
x^2+(alpha+beta)x+alpha*beta