Step-by-step explanation:
Distance = rate × time
If B is the rate of the boat, and C is the rate of the current, then we can write two equations:
18 = (B + C) × 3
18 = (B − C) × 9
Simplifying the equations:
6 = B + C
2 = B − C
Add the equations together to eliminate C:
8 = 2B
B = 4
Plug into either equation to find C:
C = 2
The boat's rate is 4 mph, and the current's rate is 2 mph.
Answer:
9ab - 9a +1
Step-by-step explanation:
first, we can distribute the negative sign to the second set of parentheses.
-(-4ab + 5) becomes + 4ab - 5
now let's put the values in (5ab-9a-4) side by side with the corresponding values in + 4ab - 5
5ab + 4ab - 9a - 4 - 5
= 9ab - 9a - 9, because 5ab + 4ab = 9ab, -9a is alone, and -4 - 5 = -9.
Answer:
7
Step-by-step explanation:
7 is the prime number that comes after 5
Yes it is symmetrical because both sides are the same
Answer:
36 microwaves
Step-by-step explanation:
First, find the volume of the truck's container
10*6*3 = 60 * 3 = 180
180 / 5 = 36
36 microwaves
Realistically, this wouldn't work unless you could make the microwaves any shape you want
However, according to mathematics, it would work
