Geometry

Solve 10a - 5b = 25 for b.
f) b = 10a + 25
g) b = 10a - 25
h) b = 2a +5
i) b = 2a - 5

What exactly are they asking me to do here? Can I get at least one with a step by step, then I'll do the others? And, then you can check my answers. Thanks :)

asked by Nirvana ♥
  1. 10a-5b=25 solve for b.
    10a-25=5b
    2a-5=b

    posted by bobpursley
  2. okay. sorry, but I am still a little confused. Is there anyway you could explain it more proficiently? Sorry.

    posted by Hazel
  3. it is kind of confusing :/

    posted by Nirvana♥
  4. Bobpursley told you the answer and showed you how to solve it. What more do you want?

    posted by Ms. Sue
  5. okay nevermind

    posted by Nirvana♥
  6. to solve for b, you want to get b all by itself on one side of the equation.

    The trick is to add/subtract and multiply/divide, keeping in mind that what you do to one side of the equation, you must also do to the other side, so they stay equal.

    So, bob's first step was to
    add 5b and subtract 25 from both sides. At that point, all the b stuff was on one side of the equation.

    Then he divided both sides by 5.

    At that point, b was all alone.

    posted by Steve
  7. (F) a=5/2

    posted by Minahil
  8. (f)a=-15/4

    posted by minahil
  9. (G)a=5/2

    posted by minahil
  10. 2a -25
    subtract and add so b is alone on one side, then divide by five on the whole equation to get what b is. We will survive Geometry!

    posted by mark
  11. i meant: 2a-5
    Not b=2a-25!

    posted by mark
  12. i meant: 2a-5
    Not b=2a-25!
    Is this from prentice hall geometry,
    Potter School anyone?

    posted by mark

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    Simplify and show: 2a-6(10a)-5a^2(2) ----------------- (2a-6)^2 This is my work but its not right. 10a-10a^2 -------- 2a-6 Then solve for a by setting numerator to zero. so I got this... 10a-10a^2=0 10a(1-a)=0 a=0, a=1 My book
  2. Geometry

    Solve 10a - 5b = 25 for b. f) b = 10a + 25 g) b = 10a - 25 h) b = 2a +5 i) b = 2a - 5 What exactly are they asking me to do here? Can I get at least one with a step by step, then I'll do the others? And, then you can check my
  3. math

    What is the simplest form of the expression below? (4a+2b) + (6a+5b) F. 6a+11b G. 10a+7 H. 10a + 7b J. 17ab i think the answer is either h or j
  4. algabra

    the sum of a the digits in a two digit # is 11. if the digits are reversed, the new # is 45 more than the original #. What is this # !!! i need help AB is the two digit number A+B=11 10B + A= 10A + B - 45 solve. Ok, first. You
  5. Math

    Solve: dA/dt = -10A, A(0) = 5 ------------------ I tried getting A by itself: A = -1/10 * dA/dt A(0) = 5 = -1/10 * dA/dt but I'm somewhat sure that's wrong; so integrating I get: int(dA/dt) = int(-10A) A = -5A^2 which doesn't make
  6. math

    factor the expression: 10a^2-19a+7 ok I no how to start of which would be (10a- )(a+ ) but i don't no how to factor it from here
  7. Math/Algebra

    Could you also check these to. Thanks. (4x^2 + 9x - 1) - (5 - x^2) Answer: 5x^2+ 9x - 6 (8 + 7a + 10a^2) - (a^2 - 3a - 2) Answer: 10 + 10a + 9a^2
  8. Algebra II

    Does the square root of ((a^2)-(10a)+(25))simplify to a+5 times the square root of -10a ? Thank You.
  9. math

    LCM of 10a and 15a^2 Factors of 10a are 10,a,2,5 but the prime factors are 2,5,a Factors of 15a^2 are 15,a^2, 3,5,a,a Prime factors are 3,5,a,a Common between two are 5 and a So is the LCM of 10a and 15^2 5a?
  10. Math 8R - Help!!!!!!!!

    The expression 2(8a to the 2nd power + a - 1) + 3(a + 3) is equivalent to a) 16a to the 2nd power + 5a + 7 b) 40a to the 2nd power + 10a + 10 c) 10a to the 2nd power + 5a + 7 d) 48a to the 2nd power + 12a + 12 please help!!!!!!!

More Similar Questions