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Cheapo Air: $49.95 +.25M=C

Discount Airways: $89.95 +.2M=C

Let's test them both. 

49.95+.25*730 = 232.45 is the price with Cheapo Air.

89.95+.2*730 = 235.95 with Discount Airways.

The equation for the cheaper one is Cheapo Air: $49.95 +.25M=C

You save $3.50 going with Cheapo Air.

3.73=[6.67E-11 * M] / (3.39E6)^2, solve for M

Solve for M:

3.73 = 5.80399×10^-24 M

3.73 = 5.80399×10^-24 M is equivalent to 5.80399×10^-24 M = 3.73:

5.80399×10^-24 M = 3.73

Multiply both sides of 5.80399×10^-24 M = 3.73 by 1.72295×10^23:

1.72295×10^23×5.80399×10^-24 M = 1.72295×10^23×3.73

1.72295×10^23×5.80399×10^-24 = 1.:

1. M = 1.72295×10^23×3.73

1.72295×10^23×3.73 = 6.42662×10^23:

1. M = 6.42662×10^23

Multiply both sides of 1. M = 6.42662×10^23 by 1.:

1.×1. M = 1.×6.42662×10^23

1.×1. = 1.^2:

1.^2 M = 1.×6.42662×10^23

1.^2 = 1:

1 M = 1.×6.42662×10^23

1.×6.42662×10^23 = 6.42662×10^23:

Answer: |M = 6.42662×10^23 Kg.

Thanks guys!!!

Hope this helped! 

If that's the picture you wanted, then it worked.

Rarinstraw, MathEevee, Shane and guest  are correct......

The slope of the line = 5/2  =  gallons / minute  = 2.5

Answer  C

A(t) = A₀(1 + r)^t

110  = 20(1 + r)¹⁰

Divide by 20:   5.5  = (1 + r)¹⁰

Take the 10th root of both sides:  1.1859  =  1 + r

Subtract 1 from both sides:  r  = 0.1859  or about 18.6%

So it is poportionality 

8.75/3.5 = 2.5

Not possible because -5 does not equal -10.

That would mean you dug 2 units in depth per hour.

definetly c becaues at the point (2,5), it can be simplified down to 2.5 as the unit rate

MEEEEE!!! big fan of super heroes 

I think its C

MEEEEE!!! big fan of super heroes 

Both are great; you can't be faulted for choosing either one.

Barca has better strikers, so Messi is not forced to handle as much of the scoring as does Ronaldo; however, he does have to distribute better, so that both Saurez and Neymar stay happy ...

I like trains.

I apologize if my opinon is wrong but, in my mind best answer would be letter C.

Explanation-

Since in this problem there is time and amount. If I recall correctly this is called proportonality. The question is asking for you to find the rate, as in ratio. To find the answer, you must set up a ratio. I would set it up with the greatest number on the chart. Set it up by amount then time- 25:10. or 25/10. Then just, divide for the answer. 

Spawn....I think the  annual growth rate  = 1.006^12  = about 7.4%

So....after 20 years, assuming that we want to use th annual growth rate formula, we have

10000 (1 + .074)^20  = about  $41,695  = $42000 [rounded per instructions]

And...as you point out.....C   is correct

Per every 2 minutes, 5 gallons of water are dispensed, 5/2=2.5, so c

I would say D is the safest bet.

multiply both sides by 3 so

x=30 

Nice, Spawn!!!!

Very nice, Alan !!!!!!