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

A block of ice is floating in a cup of water. It is 0.5 cm above the water surface and its length and width are 2cm each. Given that the density of ice is 900 k
the boy was weak.... he won the match. ( but/ although)​
Can you Help me on 23 ?
Over what interval is the function in this graph increasing? AY 5 O A. -33x2 B. -43x3-2 O C. -5 sxs 5 OD. -2 sxs 3
find the number of permutations that can be formed from all letters in the word connecticut
I need help right now!!!ASAP
I enjoyed the film on TV yesterday evening __________ nobody in my family liked it. * so and although in spite of
Fill in the blank to say how the following people feel, using a logical expression with avoir. Use a different expression each time.
Correct answer gets 5 stars
Jonas has gone through a whirlwind of drama in the first nineteen chapters of this novel. If he were to have written a four-stanza poem about everything happeni