Answer:
y=120-4x
Step-by-step explanation:
Here we are given the average speed for Day 1 and Day 2 and the time of ride . We asked to Find an expression to determine the total distance travelled in two days.
Day 1 :
Avg Speed = 8 mph
Let the time for travelling = x hrs
Hence Distace Travelled D1= Speed x Time
D1=8x
Day 2 :
Avg Speed = 12 mph
Total time of travelling for two days is given as 10 hours . Hence the time of travelling for day 2 is
= (10-x) hrs
Hence Distance travelled in Day 2 D2 = speed x time
D2 = 12(10-x)
D2=120-12x
Total Distance travelled = D1 + D2
= 8x+120-12x
=120-4x
If the total distance travelled is denoted by y
The expression will be
y=120-4x
Pick out the like terms. 6x^2 (which equals 36x), 11x, 2x^2 (which equals 4x), -17x.
36+11+4= 51, -17= 34x
-3+-4= -7
The simplified expression would be 34x+-7.
(This could be wrong though, I'm sorry if it is ^^)
Answer:
h^24
Step-by-step explanation:
h^12 divided by h^4 is h^8 according to the rule of exponent because if you divide the two terms that have the same base but different exponents, you have to subtract the exponent number. 12-4=8.
(h^8)^3 is h^24 because again according to the rule of exponent you have to multiply the two exponents together, and 8 * 3 is 24.
The simplified expression is h^24.
Answer:
-150, 55, -78
Step-by-step explanation:
44>a-64
108>a
