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

What is the area of this face?

the formula for the volume of a cone can be constructed using what fraction of the area of a circle formula?

Thomas is saving pennies in a jar. The first day he saves 3 pennies, the second day 12 pennies, the third day 48 pennnies l, and so on. How many pennies does T

According to the bar graph, which attribute is under investigation? A) The height of students. B) The height of teachers. C) The number of students in class.

What does doubling the money supply do to inflation?

HC) Natalia started an exercise program that includes stretching daily and yoga three times each week. What area of fitness is Natalia targeting, and what is

A mortgage loan in which the interest rate charged fluctuates with the level of current interest rates is called a(n)

Robin is making bows to sell at her mother's yard sale. She will use 3/4 foot of red ribbon and 2/3 foot of blue ribbon to make each bow. What is the ratio of

Joe burns Pip's indenture in the fire, implying that

I need a transitional sentence in between these 2 sentences. We all go through rough times, but it’s up to you to decide whether you’re going to suffer through