Y = 5x - 12....the slope here is 5. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, u flip the slope and change the sign. So we have 5 or 5/1.....flip the slope making it 1/5.....change the sign making it -1/5. So the perpendicular line will have a slope of -1/5.
y = mx + b
slope(m) = -1/5
(3,3)....x = 3 and y = 3
now we sub into the formula and find b, the y int
3 = -1/5(3) + b
3 = -3/5 + b
3 + 3/5 = b
15/5 + 3/5 = b
18/5 = b
so ur equation is : y = -1/5x + 18/5
Answer:
2 - 2<em>n</em>
Step-by-step explanation
We can use<em> n</em> for the number.
2 - 2(<em>n</em>)
2- 2<em>n</em>
Answer:
24 km/hr
Step-by-step explanation:
Speed is the rate of distance traveled in a defined time. Average speed is to take calculate the total distance travel at different speeds dividing by the total time taken.
Total Time = 4 hours
Total Distance = 68 km + 3 km + 25 km = 96 km
Average Speed = Total Distance / Total Time taken= 96 km / 4 hours
Average Speed = 24 km per hour
Answer:
1. x=69/40
2. x=3/4
Step-by-step explanation:
#1 steps
1. Convert the decimals to fractions
x/9/20 = 23/100/3/50
2. Simplify the fractions
20x/9 = 23/6
3. Simplify the equation using cross multiplication
6 * 20x = 23 * 9
120x = 207
4. Divide both sides by 120
x = 69/40
#2 steps
1. Simplify the fractions
1/3/1/6 = 3/2/x
2 = 3/2/x
2 = 3/2x
2. Multiply both sides by the equation 2x
4x = 3
3. Divide both sides by 4
x = 3/4
X = 9/7.
9/x + 9/x = 14
18/x = 14
18 = 14x
18/14 = x
9/7 = x