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Plane B goes X mph Plane A goes X + 140 mph   4095/X = Plane B hours   4095/(X+140) = Plane A hours   Plane B hours = Plane A hours + 4   4095/X = 4095/(X+140) + 4   You should be able to calculate the answer...

V = 225   New V each week = V - .75*V So for week 1, New V = .25*V = .25(225) = 56.25 Then for week 2, V = .25 * 56.25 and so on   You could plug this into an Excel spreadsheet formula and cascade down a column and then plot this from the results.  ...

Jen takes x minutes Pat = x - 13 minutes x+X-13 = 42 Solve for X

P **2 - (582+4P) = 90   P**2  - 4P - 672 = 0   Solve for P

A = 23 = L times W W =  2L - 6   23 = L * (2L - 6)   0 = 2L **2 - 6L - 23   Here is a related answer from last year:   The width of a rectangle is 6 less than twice its length. If the area of the rectangle is 102 square centimeters, what...

The total is 90,000 dollars so instead of 9, she would need 9000 donors at 10 dollars each.

I assume that width is not an issue.  It depends upon how much space you want to leave at the top of the box.  If you fill it to the 18 inch top, or 1.5 feet, you have a ratio of 1.5 to 8 feet which converts to a ratio of 1 to 5.33

Alice Springs is in the desert.  Portland is not in a desert.

105/35 = 3

if the actual number is 15.6666666 repeating.... then 15 and 2/3 since 2/3 =.6666666666 repeating f the number is only.666, then it is less than 2/3   and cannot be easily quantified

Do you mean p = .23 for heads and if so then tails will come up at p = .77 Perhaps I do not understand your wording.

g(x) = -3 when x = 3 g(x) = 1 when x = 2 g(x) = 5 when x = 1 g(x) = 9 when x = 0 g(x) = 13 when x = -1 g(x) = 17 when x = -2   This can be plotted on a graph and it appears to be linear when you do so. I will repeat what Vivian said, what do you need?

37.94/5 = 7.588 feet = 3.14 * Diameter, Diameter = 7.588/3.14 * 12 = 28.999, so 29 inches

They went through the Great  Depression, then World  War 2, and then the Korean War. These were great hardships which they overcame.  People worked very hard and were very tough from all they had endured.

Vince,   Please do not take offense, but I am very surprised that you need help on this one.  I tutor a wide variety of students from 5th grade through Phd.  I feel sure that all of them can do this calculation. Am I missing something?   Weekly is \$15 times 6...

Hi Dana from my hometown,   30/200 are smokers in the hospital, 15%. You may be able to ignore this though.  If you select a smoker, then 25/30 smokers have lung cancer, 83.3% chance that a smoker chosen will have have lung cancer. If you truly selected at random from...

If it's  2.5% over 18 months or 2.5% is the annual rate, there will be a difference.  If it is simple or compound interest makes a good bit of difference.  Do you have the context of this problem to answer the two questions?   For simple interest: 16,900 times .025...