Answer:
Step-by-step explanation:
Let x represent his average walking speed.
If the average speed on the bike is 8 mph faster than his walking speed,it means that his biking speed is (x + 8) mph
Distance = speed × time
Alex returns a bike to a friends house from his own house in 1/2 hour. This means that the distance covered is
0.5(x + 8)
He walks back over the same route in 1.5 hours. This means that the distance covered is
1.5x
Since the distance covered is the same, then
1.5x = 0.5(x + 8)
1.5x = 0.5x + 4
1.5x - 0.5x = 4
x = 4 mph
Therefore, the distanceof Alex's house from his friend's house is
4 × 1.5 = 6 miles
Answer:
20, 000
Step-by-step explanation:
For a duration of 50 years, the consumption will be equal to the product of annual consumption and the number of years hence 800*50=40, 000 barrels.
Since 20, 000 barrels are unknown and they are part if consumption in the next 50 years, then the known or proven reserves will be given by getting the difference between total consumption and unknown reserve, expressed as 40, 000-20, 000=20, 000 barrels.
***4 1/2
<span>2 + 9/4
1 + 13/4
3 + 5/4
(2 1/2) + (1 3/4) or 5/2 + 7/4
<span>
(1 1/8) + (3 1/8) or 9/8 + 25/8
</span></span>
***1 5/6
<span>(1 1/6) + (2/3) or 7/6 + 2/3
(1 1/3) + (1/2) or 4/3 + 1/2
(1 1/2) + (1/3) or 3/2 + 1/3
<span>
(1 2/3) + (1/6) or 5/3 + 1/6
I hope my answer has come to your help. God bless and have a nice day ahead!
</span></span>
Answer:
B. 16
Step-by-step explanation:
F(3) means we must plug the number "3" into the equation for each x.
(3)^2 + 3(3) -2
9 + 9 - 2
16
