ElectricPavlov

I am a member.....I don't always sign in.....

Given     d/50 = x+4     and   d/65 = x-2    re-arrange

                 d/50 - 4 = x          d/65+2 = x      now equate the two of them ...since theyare both = x

                d/50 -4 = d/65+2

               d/65 - d/50 = - 6

                  d = 1300 m

find 'x'     d/65 = x-2

             1300/65 = x-2

                  x = 22 seconds

Find exact rate that gets her there at 'x'

1300/ r = 22             r = 59.09 m/s

Any number with two 7's next to each other.....

I think it is an ellipse  .....

Add all of the cookies and divide by 5 days

(1+11+3+5+1)/5 = 21/5 =  4.2 cookies / day average

Mode is the number that appears most often      1   11   3  5  1       mode is  1

Looking for n

n + 12 - 1.25 - 2  = 11.5

n = 2.75 cups

For x from A to B is from  2 to 14   distance = 12   we need 3 times this added to 14       x = 50

  for y    fro A to B is -2 to 4   distance = 6     3 times this added to 4   = 16                   y = 22

Even squares come from even numbers

(x+2)^2  - x^2  = 228

x^2 + 4x + 4   - x^2 = 228

4x = 224

x = 56    x+2 = 58       58^2 = 3364

y = x^2 +10x - 7       when x = 0      you will have y intercept     = -7

                 when y = 0       you will have x-axis intercepts

   0 = x^2 + 10x-7    Use Quadratic Fomula to find x axis intercepts =  -5 +-  4 sqrt 2

Find a multiple of 5    plus 2    that leaves 3 when divided by 4

15 + 2       leaves    1   when divided by 4

20 +2       leaves two

25 +2       leaves 3        sooooo   27 stairs