Answer:
11
Step-by-step explanation:
Put the numbers in place of the corresponding letters and do the arithmetic. Use a calculator if necessary.
Answer:
x= 1
y= -2
Step-by-step explanation:
equation (1): y= -3x+1
equation (2): y=x-3
solve the system of equations by substitution:
step1: sub ( x-3 ) for y in equation 1:
y = -3x+1
x-3 = -3x+1
step2: simplify the equation to get x:
(add 3 for both sides)
x = -3x+4
(add 3x for both sides)
4x = 4
(divide 4 from both sides)
x = 1
step3: sub the value of x (x=1) in equation 2:
y = x-3
y = 1-3
step4: solve the equation to get y:
y = -2
Step-by-step explanation:
∠6 = 10x
∠7 = 5x
∠6 = ∠8
∠7 = ∠5
Find value of x
∠5 + ∠6 + ∠7 + ∠8 = 360
5x + 10x + 5x + 10x = 360
30x = 360
x = 360/30
x = 12°
Answer:
5.2 hours or 312 minutes
Step-by-step explanation:
The plane route has been given as 260 miles.
We're told that the car/road rouge is 10% longer, and that is 260 * 1.1, which is equal to 286 miles.
Now, the car travels at 55 miles per hour, and we're to calculate how long it will take to travel.
Speed = distance / time
Making time the subject of formula, we know that
Time = distance / speed
Time = 286 miles / 55 miles per hour
Time = 5.2 hours, converting to minute, we have 5.2 * 60 = 312 minutes.
