physics ( math)

posted by .

Solve the Equations in terms of X:
a. x/a = b/c
b. s=xt^2/2
d. 4= 10/x
e. 5= 5/x-5
f. 40=2((x10)2-5)
g. x(y+2)/ (5y +8)

1.What is the average of 2/9 and 4/5?

2. Subtract 4.20 x 10^-5 from 6.468 x 10^-4

3.Given: D= density; M= Mass; V= Volume; and D= M/V
a) If an object has a density of 1.5g/cm cubed and a volume of 3 cm cubed, how much it weigh?
b) If an object has a density of 1.5g/cm cubed and a mass of 4.5g, what is its volume?

4. A car travels in 125 miles in 2 and a half hours. What is its average speed?

Thanks in advance and will appreciate it work is shown so i can be able to learn and do it myself the next time...

  • physics ( math) -

    a thoough g are basic algebra questions. If you cannot do any of them, you should not be taking physics. Show us your work so someone can explain where help is needed.

    1. The average of two numbers is their sum divided by 2.

    2. Write the numbers so that the exponent of 10 is the same. The subtract the mumbers in front.
    6.468x10-4
    -0.042x10^-4
    ------------
    6.426 x 10^-4

    3a M = V*D
    3b V = M/D

    4. 125 / 2.5 = __ mph?

  • physics ( math) -

    and g is not an equation..

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    2x + 1/2 = x/2 + 1/3 Subtract the x/2 from both sides to get 2x + 1/2 - x/2 = + 1/3 Now subtract 1/2 from both sides to get 2x + - x/2 = 1/3 - 1/2 Then combine terms on both sides and solve for x. Subtract the x/2 from both sides to …
  2. Formulas and Literal Equations

    Have not a clue please help to figure this one out: P-Q=-R, for Q Do you wish to solve for Q?
  3. math,help!!!!

    How do i do thois problem?Please help. Problem #1 solve the system by subtraction. 5x-3y=13 4x-3y=11 Subtract the lower equation's left and right terms from the upper equation's corresponding terms. The first step will get you this:
  4. algebra

    I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 …
  5. math

    Roberto's scout troop is making some birdhouses for the park district. The basic birdhouse uses one half-sheet of plywood and the deluxe bridhouse uses three half-sheets of plywood. They plan to build a total of 24 birdhouses, and …
  6. Math

    I am really have a tough time trying to solve this problem. I think my first three steps are correct but I am not sure. Could someone please help me?
  7. math

    Light travels at a speed of 186,282 miles per second. How could this number be expressed in scientific notation?
  8. math

    Light travels at a speed of 186,282 miles per second. How could this number be expressed in scientific notation?
  9. Math 8R - Help!!!!!!!!!!!!!!!!!!!

    14. Subtract -5 from -14 -14 - (-5) 16. Subtract -6 from 18 18 - (-6) 18. From 14 subtract -2 22. Subtract 17 from 8 I already know how to solve this just have trouble formatting it. How do I do it for number 18 and 22?
  10. math or chemistry

    5.4 x10^-2 by 2.5 x10^-3 by 7.9 x10^-3m volume = 106.65 x10-8m^3 Check pls yesterday you said 106.65 x10^-6. If you add 2+3+3 you get 8 is that right?

More Similar Questions