rahimasfdr0
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 :

S1NGH
S1NGH S1NGH
  • 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

Forward Fuels is a chemicals manufacturer with a large research and development team searching for new alternatives to gasoline. Because it develops new chemica
a rocket is launched from 180 feet above the ground at time t=0. the function that models this situation is modeled by h(t)=-16x^2+96x+180, where t is measured
Vivian lost her goggles in the crowd of people who came to the beach for the summer concert. a. Vivian (the letter v) c. goggles (the letter g) b. people (the l
What is 3/4 minus 1/3
About what is Rigel's surface temperature?
which expression is equivalent to 24x + 12?
What did the Russian and Chinese revolutions share in common with the French Revolution? a. A commitment to Marxist ideology b. A focus on promoting the interes
Theresa is planning to make a plastic cover for her new globe to keep it from being damaged. If Theresa’s new globe has a radius of 3 inches, then how much plas
Which of the following would be most consistent with a GRIT strategy?A. announcing that even a small attack on an ally will result in a nuclear attack on the en
please help asap I will give brainlest