Answer:
Step-by-step explanation:
-0.5(3x + 5) and -1.5x + 2.5
-0.5(3x + 5)...distribute the -0.5 thru the parenthesis
-1.5x - 2.5
no, these are not equivalent.... one is -1.5x + 2.5 and the other is -1.5x - 2.5....not the same
Answer:
31
Step-by-step explanation:
Answer:
a. 4 and 120. b. 260 miles. c. 140 miles.
Step-by-step explanation:
d(t) = 400-70t.
a. (4,120) refers that with t=4 (when the driver has driven 4 hours), he is incorrect: 120 miles from his destination. d(4) = 400-70(4) = 400-280 = 120.
b. After driving 2 hours, that is in t=2, he is d(2)= 400-70(2) = 400-140 = 260 miles from his destination.
c. In his second hour of driving, that is in t=2 he is 260 miles from his destination, so he has driven 140 miles.
1 week
Rent-all: 55.50/3 days=18.5/day, same rate for extra days
so the total cost are:
day|cost
1 |55.50
2 |55.50
3 |55.50
4 |74.00
5 |92.50
6 |111.00
7 |129.5
A-1 Rentals: 10.99/half-day=21.98/day
day|cost
0.5 |10.99
1 |21.98
1.5 |32.97
2 |43.96
2.5 |54.95
3 |65.94
3.5 |76.93
4 |87.92
4.5 |98.91
5 |109.90
5.5 |120.89
6 |131.88
6.5 |142.87
7 |153.86
car-town: 19.25/day
day|cost
1 |19.25
2 |38.50
3 |57.75
4 |77.00
5 |96.25
6 |115.50
7 |134.75
so Rent-all has the lowest daily cost/best offer
Answer:
10
Step-by-step explanation:
1. 2(4.5)+1
2. 9+1
3. 10