rahimasfdr0 rahimasfdr0

04-08-2020
Mathematics

contestada

if y is directly proportional to x and y=5 when x=2, find the value of y when x =7

Respuesta :

04-08-2020

Answer:

y = 17.5

Step-by-step explanation:

y = kx

→ Substitute in the values

5 = 2k

→ Divide both sides by 2 to isolate k

k = 2.5

⇒ y = 2.5x

→ Substitute in x = 7

y = 2.5x ⇔ y = 2.5 × 7 ⇔ y = 17.5

Answer Link

Otras preguntas

The median of the data 20, 30, 40, 10, 15, 25, 35

I need help fast answering these questions plzzz!! NO LINKS

What is the best choice for why an HR professional would choose external recruiting sources? A. Because it is the usual way of recruiting applicants. B. Because

Art can give information about all of the following EXCEPT Common symbols in a culture. What was important to a culture. The time of day that it was created. Th

short-term solution to sex ed

Robbie decided she never had to hear anything worse in her life, because she had lived the worst. true or false

Which of the following is an example of logos being used? A) Using an emotional appeal that will resonate with the audience, and help you establish common groun

Evaluate the graph when X=1 A.-2 B.0 C.6 D.12

i) Explain how the biochemical reaction can still occur if the blood sugar level is lowerthan the normal range.

12 1/2 - (-4 1/2) = ?