Answer:
10000
Step-by-step explanation:
you have four digits and each one of them can be 0-9, so 10 possibilities for each digit
10×10×10×10= 10,000
(gonna start with the up and down question as number 1)
1. y
2. increase
3. decrease
4. x
5. increase
6. decrease
Answer:
Option A
Step-by-step explanation:
Consider the Fibonacci series:
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ...
Ignore the first 3 terms ( keys)
f(5)/f(4) = 5/3 = ~1.67
f(6)/f(5) = 8/5 = 1.60
f(7)/(f6) = 13/8 = ~1.63
f(8)/f(7) = 21/13 = ~1.61
f(9)/f(8) = 34/21 = ~1.62
f(10)/f(9) = 55/34 = ~1.62
...
=> Option A is the solution
The answer here is C. Let's proof.
Since we are dealing with whole numbers, select a constant for x to satisfy that y will result a whole number.
If x = 1, then the function would be 1 + 4y = 9. Solving for y,
4y = 9 - 1
4y = 8
y = 2
In ordered pair, that is (1,2)
Next, if x = 5, then 5 + 4y = 9. Solving for y,
4y = 9 - 5
4y = 4
y = 1
In ordered pair, that is (5,1).
Lastly, if x = 9, then 9 + 4y = 9. Solving for y,
4y = 9 - 9
y = 0/4
y = 0
In order pair, that is (9,0).
Answer:
Step-by-step explanation:
Let be "x" the lenght in feet of rope that you can buy with 30 dollars.
According to the information provided in the exercise, you can buy a piece of rope of 2 feet with 20 cents.
Remember that
Knowing this, you can write the following proportion:
FInally, solving for "x", you get this result: