Answer:
X= -12
Step-by-step explanation:
-2x-4=20
-2x-4+4=20+4
-2x=24
x=-12
Answer: The the speed of elevators is 22.55.
Explanation:
It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.
The speed is the change in distance with respect to time.

From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,


Therefore, the speed of elevators is 22.55.
Answer:
9
Step-by-step explanation:
If you want to get $15 profit, You will need to paint 9 faces. You spent $12 on painting supplies so this is the explanation.
$3 x 9 = $27
$-12 + $27 = $15
That way, you earn $15.
Answer:
240
Step-by-step explanation:
Tom have 5 possibles sizes * 4 possibles types of crust *12 possibles toppings.
If you multiply all the possiblilities you will find the answer:
5*4*12=240
Answer:
p < 5
Step-by-step explanation:
We want to find p for ...
1.5p -1 < 1 +1.1p
0.4p < 2 . . . . add 1-1.1p
p < 5 . . . . . . . multiply by 2.5
The desired relationship will be the case for values of p less than 5.