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

Alison Skateland, a real estate broker in Yuba City, California, has recently become interested in the sale of business opportunities -- particularly restaurant

Suppose a triangle has two sides of length 42 and 35, and that the angle between these two sides is 120 degrees. What is the length of the third side of the tri

Evaluate this expression for x = 5: 6 + (10 – x)2 – 20

what are the crucial factors that make india a federal country despite the strong dominance of caste in indian politics we cannot say that indian politics profo

95 POINTS Use Triangle DEF shown below to answer the question that follows: Which of the following must be given to prove that ADEF is similar to AGDF? (5 point

he is a bank robber but.....(complete the following sentence)

A car crash woke John from his afternoon nap. When he looked out his apartment window, he saw several people milling around two smashed cars. He decided not to

What's the opposite of 6? :D

Which phrase best completes this sentence? __________ te guste el libro que te voy a prestar. A. Es evidente que B. Espero que C. Dice que D. Es lamentable

Help quick Need the answer