Answer:
7
Step-by-step explanation:
If you divide 8y / 8 then you have to do the same thing to 56. When you do, y = 7
Answer:
25%
Step-by-step explanation:
This question is about conditional probability. Let's say that the probability of raining on Saturday is X=true and the probability of raining on Sunday is Y=true. There is a 15% it will rain on both Saturday and Sunday, to put into the equation it will be:
P(X= true ∩ Y = true) = P(X = true) * P(Y = true)= 0.15
There is a 60% chance of rain on Saturday, mean the equation is
P(X = true) = 0.6
The question is asking for the chance of rain on Sunday or P(Y = true). If we substitute the second equation to first, it will be:
P(X = true) * P(Y = true)= 0.15
0.6* P(Y = true)= 0.15
P(Y = true)= 0.15/0.6
P(Y = true)= 0.25 = 25%
4 pm, who goes to soccer at 4 am
Answer:
let x be the number of cats and y be the number of dogs:
x + y = 40
4x + 4y = 160
If you divide both sides of the second equation by 4, you will be left with:
x + y = 40
Then, subtract both equations:
x + y =40
- (x + y = 40)
0 = 0
Since you have a number = a number, there are infinite solutions.
Part A:
x is how many mattresses
y is how much money in total
Company A is (30*x)+13=y 133
Company B is (28*x)+15=y 127
Part B:
Company B because the answer is 127 whereas Company A would charge 133.
Part C:
You would save $12 if you use Company B instead of Company A to buy 7 mattresses.
