morganjohnson1 morganjohnson1

17-03-2017
Mathematics

contestada

Each red stick is 4 cm longer than each blue stick. Five red sticks and two blue sticks together measure exactly 100 cm. How long is the blue stick?

Respuesta :

trombonebookworm trombonebookworm

17-03-2017

x= red stick
y= blue stick

Set up a system of equations:
y+4=x
5x+2y=100

Substitute in:
5(y+4)+2y=100
5y+20+2y=100
7y=80
y=80/7=11 3/7 cm

The blue stick is 11 3/7 cm

Hope this helped!

Answer Link

Otras preguntas

what is the molarity of a solution in which 0.0142 mole of Mn2(SO4)3 is dissolved in 26ml of water

PLEASE HELP! A juice company gives prizes to anyone finding specially marked caps on its juice bottles. You and your friends buy 20 bottles of juice. You find t

Explain how cell division and cell multiplication follow a pre- designed program stored in the DNA and what may happen when cells become uncontrolled and anarc

WILL MARK BRAINLIEST!!! A bag contains four red marbles, three blue marbles, two yellow marbles, and one green marble. Two marbles are drawn from the bag, one

At 1:00 pm, Ryan realizes his computer has been unplugged. He needs to work on the computer in his car and wants it to be fully charged. The image on the right

Is this function linear or exponential? x y 0 – 5 1 – 10 2 – 20 3 – 40 4 – 80

Explain two ways in which the alveoli are adapted to increase the efficiency of gas exchange

16. What is shown in the above figure? O A. Oil control ring B. Cam-ground piston C. Compression ring 1 D. Compression ring 2

(x - 9)2 + (y - 4)2 = 400 Center: Radius:

Does engineering have an impact on the tourism and economy of China and the world? Justify your answer