Answer:
N = - 4
V =5
Step-by-step explanation:
![2n + 7 = - 1 \\ 2n = - 1 - 7 \\ 2n = - 8 \\ n = - 4](https://tex.z-dn.net/?f=2n%20%20%2B%207%20%3D%20%20-%201%20%5C%5C%202n%20%3D%20%20-%201%20-%207%20%5C%5C%202n%20%3D%20%20-%208%20%5C%5C%20n%20%3D%20%20-%204)
![4 - 3v = - 19 \\ - 3v = - 19 + 4 \\ - 3v = - 15 \\ v = 5](https://tex.z-dn.net/?f=4%20-%203v%20%3D%20%20-%2019%20%5C%5C%20%20-%203v%20%3D%20%20-%2019%20%2B%204%20%5C%5C%20%20-%203v%20%3D%20%20-%2015%20%5C%5C%20v%20%3D%205)
Answer:
It will take 1.47 hours for the horse and clown to collide
Step-by-step explanation:
They are driving toward each other, in opposite directions.
So to find their speed of approximation, we add their speeds.
19 mph + 15 mph = 34 mph.
This means that each hour, they are 34 miles closer.
How long it takes for them to find each other if they are 50 miles apart?
1 hour - 34 miles
x hours - 50 miles
![34x = 50](https://tex.z-dn.net/?f=34x%20%3D%2050)
![x = \frac{50}{34}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B50%7D%7B34%7D)
![x = 1.47](https://tex.z-dn.net/?f=x%20%3D%201.47)
It will take 1.47 hours for the horse and clown to collide
Answer:
<h3>#6</h3>
Positive numbers less than 100 are 1 through 99.
- 1- digit = 3 numbers, zero excluded
- 2- digit = 3*4 = 12 numbers, zero excluded for the first digit
<u>Total:</u>
<u>Repetition is not allowed:</u>
- 1- digit = 3 numbers as above
- 2-digit = 3*3 = 9 numbers, minus one for the second digit
<u>Total:</u>
<h3>#7</h3>
abcd is the number.
- a = 2, then d = 4 or 0, b = 3 options, c = 2 options
- a = 3, no options
<u>Total:</u>
Answer:
7 for the top and bottom is 9
Step-by-step explanation:
try to add
Answer:
x = 48
Step-by-step explanation:
first you would add them together and set it equal to 180( because a straight line is 180 degrees): 3x - 12 + x = 180
Then you add like terms( the x's): 4x - 12 = 180
now add 12 to both sides: 4x = 192
now divide by 4 on both sides x = 48
hope this helps! : )