# can someone help me with a question of an explanat

posted by .

my question is for math,

I have the problem worked out i just don't remember what the tutor who helped me told me for the explanation of steps i just like to know how they came up with that.

Directions: Solve each literal equation for the indicated variable.

A=1/2h(B+b) (for b) Area of trapezoid
A= h(B+b)/2
2A=h(B+b)
2A/h=B+b
2A/h-B=b

A=(1/2h)(B+b) (for b) Area of trapezoid
A= h(B+b)/2 is another way of writing the same thing
2A=h(B+b) Is what ou get by multiplying both sides of the equation by 2.
2A/h=B+b Is what you get by divifing both sides of the equation by h
2A/h-B=b Is what you get by subtracting B from both sides. This provides an equation for b in terms of A, h and B

I appreciate your help very much thank you this way i can do a couple of more problems similar to this one i appreciated i just couldn't remember the explanations.

## Similar Questions

1. ### math,help

How or can someone set this up as an equation or what steps do i do?
2. ### DrBob222

On Monday you helped me to understand and answer the one question, but I am not too sure if they want all the calculations that you answered... regretably, I am still a bit lost with these! Below is the question as it is printed: The …
3. ### math,help

Can someone show me how do i multiply the following fractions: (n^2-n-20)/(2n^2) times (n^2+5n)/(n^2-25) When you multiply fractions, you just multiply straight across. So if you have: 1/3 * 1/4 1*1 ---- 3*4 That's 1/12 With that in …
4. ### algebra1

could you walk-through the steps to solving this problem because I am stuck; 3x-5(3x-7)=2(x+9)+45 Let me know if you have a question in any step. 3x-5(3x-7)=2(x+9)+45 3x-15x+35= 2x+18+45 -12x+35 = 2x+63 -35 -35 -12x= 2x +63-35 -12x= …
5. ### math 116

I am taking math 116 , I am to find the solution to the problem 9x-3y=-68 and -2x+y=18 and to give an ordered pair. Now, that you have it where you take 9x from both sides, or is it 3y?
6. ### Physics

A hypothetical spherical planet consists entirely of iron (p=7860 kg/m^3). Calclate the period of a satellite that orbits just above its surface. I started out with the density formula P=M/V, but i kept subbing in other formulas, but …
7. ### math

i was doing the mean theorem for this problem: (x+4)^2 (x-3) on [-4,3] i got to: 3x^2 + 10x-8=7 someone helped me out and told me the answer was (-5 +/- sqrt(70))/(3) but i don't know how to get to there, can someone please explain …
8. ### A question for Ms.Sue! :P

This is just by curiosity: Ms. Sue, have you ever asked a question or do you only answer them as the good tutor you are?
9. ### Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question?
10. ### Science

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question?

More Similar Questions