Answer:
length = 1
area=13.5
Step-by-step
x is
28-2x=1
=>-2x=1-28
=>-2x=-27
=>x=-27/-2
therefore
x=13.5
The common difference between the length is -2
So the length is
26+(13.5-1)×-2
26+12.5×-2
26-25
1
So the area is
13.5×1
13.5
His balance on Friday is $229.28
Step-by-step explanation:
Area = πr²
2) 11² x 3.14 = 379.94
3) 3² x 3.14 = 28.26
4) 5² x 3.14 = 78.5
5) 6.5² x 3.14 = 132.665
6) 7.2² x 3.14= 162.7776
Answer:
18 mph
Step-by-step explanation:
12.6 × 5 =68.0. 68 - 50 = 18
Your answer is:

This is because there are 40 boxes in total. The chance of a white box being handed out is 10/40. If a white box is handed out as a prize, there are going to be 39 boxes left, but only 9 of those 39 boxes would be white.
Ideally, tree diagrams should be used to solve such problems.