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

The picture shows a bar magnet with the poles labeled N and S. The magnet was cut into two pieces—one short piece and one long piece. How should the cut end of

math pls help!! larger number? smaller number?

The gulf stream and global warming reading answers.

Driving at an average speed of 52 mph, how long will it take someone to take a 390 mile road trip?

1. What is the slope of a line that is perpendicular to the line represented by the equation 3x + 4y = 12? A. 3/4 B. -4/3 C. 4/3 D. -3/4

why is carbon essential to life

Which sentence best summarizes a theme of "Bul_GO!-gi"? A. Adjusting to a new culture can be difficult. B. Mothers teach their children important lessons. C. On

What is one way we are brainwashed in our current society?

Which THREE items represent accomplishments of Representative Carl Vinson? A)was an Admiral in the U.S. Navy B)served one term as Governor of Georgia C)served 5

You can get some great new space for $22 per square foot per year. You will be leasing 5,000 square feet. What will your monthly rent be?