Answer: 59 & 21
Step-by-step explanation:
so this probably won't be the best explanation, but here goes:
For the sake of knowing the two numbers aren't equal to each other, I decided to do variables n and x, so:
n+x=80
Now we need to find the value of n:
So the question sets this up as
n-2x=17. We need to change the equation so that we're solving for n, so: n=17+2x
Next we need to solve n+x=80, to do that we need to make it into x=80-n
Now that they're set up like this we can do : 80-n=17+2x.
I honestly don't know how to explain it the rest of the way but if you plug in those two numbers they should be right.
Answer: 1 year = 1200
Y x 1200 = The visitors
(Y= Years/time)
Step-by-step explanation:
Answer:
The answer is 29/42
Step-by-step explanation:
First, let's calculate how many people predicted they would fail. The question states that 65 people took the exam and 23 predicted they would pass, so we can find the number of people that predicted they would fail by the following calculation:
Let FP be the people who predicted they'd fail
65 = 23 + FP
65 - 23 = FP
42 = FP
Now, let's move on to the next part. The question states that a total of 31 people passed the test, from those 18 being the people who predicted they would pass and the rest are people who had predicted they would fail but ended up passing.
Let's set x as the number of people who predicted they would fail but have passed.
31 = 18 + x
31 - 18 = x
13 = x
Since 13 of the 42 FP have passed, we can calculate how many of them failed. Let y be the number of people that predicted to fail and ended up failing:
13 + y = 42
y = 42 - 13
y = 29
Finally, now we have the fraction of those who predicted that they would fail actually did fail and that's 29/42
Answer:
2.5 hours
Step-by-step explanation:
We know the formula
d= rt where d is distance r = rate and t = time
10miles = 4 mph * t
Divide each side by 4
10/4 = 4t/4
2.5 hours = t
The axis of symmetry is 2. If you look at the function <span>f(x)=(x-2)^2+3, you flip the sign of the "-2" (it would become a positive 2) that is in the parentheses and it becomes the x-coordinate of the vertex (AKA the axis of symmetry). I know it's sort of confusing, but I hope you get what I mean!</span>