X+y=31.5
x-y=5.25
add 2 equations
x+y+x-y=31.5+5.25
2x=36.75
x=18.375
y=31.5-18.375=13.125
check : 18.375+13.125=31.5, 18.375-13.125=5.25
so
Answer:
18.375 and 13.125
Answer:
95
Step-by-step explanation:
80+(200 divided by 2)+(420 divided by 4)=285
285 divided by 3=95
Answer:
Step-by-step explanation:
1. What is the theoretical probability that a coin toss results in two heads showing?
25%
2. What is the experimental probability that a coin toss results in two heads showing?
50%
3. What is the theoretical probability that a coin toss results in two tails showing
0.5%
4. What is the experimental probability that a coin toss results in two tails showing?
25%
5. What is the theoretical probability that a coin toss results in one head and one tail showing?
0.5
6. What is the experimental probability that a coin toss results in one head and one tail showing?
0.5
7. Compare the theoretical probabilities to your experimental probabilities. Why might there be a difference?
0.5
There you go. Remember you can figure these answers out by yourself if you really try. From now on ill be answering questions and trying to help other people. Please read from your lessons as they can help you a lot, Thank you.
Answer:
k=45
Step-by-step explanation:
Since the sum of the measures are 180 and the measures are 45 degrees, k degrees, and 2k degrees, we can conclude that 
. 2k and k are like terms, so you can add 2k and k to get 3k.Then, you would have 
. Since you are finding k, you want to isolate k as best you can. To do this, you subtract 45 on both sides 
as shown by the equation, 180-45 is 135. Then, you divide 3 on both sides to get k=45.
It's C, that is decreeing from y =4 to y=3
