Answer:
The answer is 19.5 miles per hour.
Step-by-step explanation:
If it takes Louisto reach the store 15 minutes at 6 miles per hour, the distance between the store and his home is 1.5 miles.
His speed travelling back is 20 miles per hour, which means that the 1.5 mile trip is completed in 4.5 minutes.
The total time he travels is 19.5 minutes and the total distance is 3 miles, so his average speed is Vavg = (3 * 60) / 19.5 = 9.23 miles per hour.
I hope this answer helps.
What are the sets of points?
Answer:
The solutions to the equation are -3,-2,2
Step-by-step explanation:
x^3+3x^2=4x+12
Subtract 4x +12 from each side
x^3+3x^2-4x-12=4x+12-4x-12
x^3+3x^2-4x-12=0
I will use factoring by grouping
x^3+3x^2 -4x-12=0
I will factor out x^2 from the first group and -4 from the second group
x^2 (x+3) -4(x+3) =0
Now we can factor out (x+3)
(x+3) (x^2-4) =0
We can use the zero product principle since the right hand side is equal to 0
x+3 =0 x^2-4 =0
x+3-3=0-3 x^2 -4+4=0+4
x=-3 x^2=4
Take the square root of each side
sqrt(x^2) = sqrt(4)
x=±2
The solutions to the equation are -3,-2,2
Answer:
4 oz
Step-by-step explanation:
20 oz divided by 5 oz is 4 oz
Answer:
x ÷ 8
Step-by-step explanation: