barbiana barbiana
  • 03-07-2019
  • Mathematics
contestada

assume y varies directly as x if y = 7 when x=3 find x when y=21

Respuesta :

eddiezarate12 eddiezarate12
  • 03-07-2019

Answer:

x=9 when y=21

Step-by-step explanation:

I used cross multiplication

7:3=21:x

7x=63

x=9

Answer Link

Otras preguntas

Operation Desert Storm saw military involvement in Saudi Arabia Israel Iraq Afganistan
Which of the following scientists developed laws of inheritance before DNA and genes were discovered? O A. Rosalind Franklin O B. Gregor Mendel O C. Al-Razi O D
Please help me! Simple Spanish question:
State the parts of an electric motor and how a motor works.
What did each of the big four want out of the treaty of versailles
What are the new vertices of quadrilateral DEFG, if the quadrilateral is translated downward one unit? A. D’ = (-5,2), E’ = (-3,6), F’ = (5,2), G’ = (3,-2) B.
1)A robot is a machine that is able to perform a variety of tasks through the use of a computer. (2)This computer is programmed to control movements of the robo
advantage and disadvantage of phone​
Write the verb in parentheses in the imperfect tense. Los monos_en la jungla.(vivir)
Drag the tiles to the correct boxes to complete the pairs. Match each term to the example that describes it. Tiles Researchers in the Amazon region found 100 di