28-03-2016
Mathematics

contestada

Make a the subject of the following:
a-3r=r(a+1)

Respuesta :

apologiabiology apologiabiology

28-03-2016

a-3r=r(a+1)
add 3r to both sides
a=r3+r(a+1) to both sides
undistribute since ab+ac=a(b+c)
a=r(3+a+1)
add like terms
a=r(4+a)
distribute
a=4r+ra
subtract ra from both sides
a-ra=4r
undistribute a
a(1-r)=4r
divide both sides by 1-r
a=4/(1-r)

Answer Link

Otras preguntas

Rewrite the sentence by correcting the misplaced modifier, squinting modifier, or dangling modifier. We planned to in three years or less, take a trip to Asia.

A girl bought a dog for $10 sold it for 15 bought it back for 20 and finally sold it for 25 did the girl make or lose money and how much did she make or lose

Which kind of region is based on the kinds of work people do? vegetation region economic region cultural region climate region

What steps did the Roman empire take to expand and support trade? Select the three correct answers. A built a vast network of paved roads B. raised taxes on ord

Assessment started: undefined. Item 1 Factor. x2−6x+9 (x−3)2 (x+9)2 (x−9)2 (x+3)2

-4y+5x=17 the point (x,-3) is a solution to the equation shown. What is the value of x

Monica was making snacks for her friends by putting equal amount of granola ino small bags.She started with 3 4/5 cups of granola. She ate 2/5 cups of granola.

Cynthia is writing a fictionalized story about the real life of a nurse. She used a scene from her favorite television sitcom as the source material for her res

You have a 32 -foot fence around a square garden. There are 4 equal sections. You paint 1/3 of one section of the fence. What fraction of the fence did you pai

During the latest month, the company purchased and used 58,000 pounds of direct materials at a price of $1.00 per pound to produce 10,000 units of output. Direc