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

Why do health insurance companies often have services to allow to video chat with doctors they want patients to learn use new technologies it means that health

A 10 gg bullet traveling at 440 m/s strikes a 12 kg , 0.90-m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, causing the door to

LOTS OF POINTS French & English School Comparison (Please read the small amount of instructions carefully, and answer).

If a 45 45 90 triangle has the hypothenuse of 10 what would the legs x and y be

read the map.which natural feature is called "the Apennines"A: the body of water east of the peninsulaB: the body of water to the west of the peninsulaC: the mo

PLEASE HELP ALEKS!!!!!!!!!!!

If a solid has 6 faces and 12 edges, how many vertices does it have?

Select the expression that equals -7 - (-12).

Name one factor that could increase the supply of saving and one that could increase the demand for saving. Discuss the effects of each on saving, investment, a

I am x years old and my brother is 7years . If you take 80% of the sum of our ages the result will be 12. Write an equation and solve it to find my age