Answer:
$180
Step-by-step explanation:
Since the discount is 40 percent and is also $72, We will cross multiply. 72 x 100 = 40 x what?
7200/40 = 180
The mirror was originally $180.
L (water level) = -0.5 d (days) +34
Place 26 into the (L) variable and solve
26= -0.5 d + 34
0.5 d = 8
d=16
Answer:
1 hour 42 minutes
Step-by-step explanation:
Given: Speed of 1st trucker= 62 mph
Speed of 2nd trucker= 66 mph
Total distance need to cover to be in contact is 270 miles
1st trucker start 1 hour ahead of 2nd trucker
Lets assume 2nd trucker take `x` hours to be in contact and 1st trucker take `(x+1)` hours.
We know, distance= 
1st trucker, distance
∴ 
2nd trucker, distance
∴
Now, putting the values in an equation.

⇒ 
Opening the parenthesis to solve and subtracting both side by 62
⇒ 
∴ x=
= 1 hour 42 minutes
∴ It will take 1 hour 42 minutes to be able contact each other after first trucker leaves.
<span>0.46428571428 you have to know how to add and subtracts fractions
</span>
Yes there is rotational symmetry and you can rotate 5 times in a complete circle.
so 360/5 = 72 degrees or C