Mildred cut a 9 foot board into two pieces the long piece is twice as long as the short one how long is the short piece

The short piece is 3 feet longStep-by-step explanation:The given is:Mildred cut a 9 foot board into two piecesThe long piece is twice as long as the short oneWe need to find how long is the short piece isAssume that the length of the short piece is x feet, and the length of long piece is y feet∵ x represents the length of the short piece∵ y represents the length of the long piece∵ The length of the board is 9 foot∴ x + y = 9 ⇒ (1)∵ The long piece is twice as long as the short one∴ y = 2x ⇒ (2)Now we have a system of equation to solve it Substitute y in equation (1) by equation (2)∵ x + 2x = 9- Add like terms∴ 3x = 9- Divide both sides by 3∴ x = 3∵ x represents the length of the short piece∴ The length of the short piece is 3 feetThe short piece is 3 feet longLearn more:You can learn more about the system of equations in brainly.com/question/3965451#LearnwithBrainly