martinawyland
martinawyland martinawyland
  • 03-11-2019
  • Mathematics
contestada

Given that y and x are directly proportional and
y=2 when x=7, find the value of y when x=17.5.

Respuesta :

kevinbentch
kevinbentch kevinbentch
  • 03-11-2019

Answer:

The answer is: 5.

Step-by-step explanation:

Set up an equation:

2 / 7 = y / 17.5

Cross multiply:

7y = 2 * 17.5

7y = 35

y = 35 / 7 = 5

Answer Link
Аноним Аноним
  • 03-11-2019

Answer:

y = 5.

Step-by-step explanation:

Direct proportionality is : y = kx where k is a constant.

Finding k by substituting the given values of x and y:

2 = k * 7

k = 2/7.

So the equation is y = 2/7 x.

When x = 17.5:

y = 2/7 * 17.5

y = 5.

Answer Link

Otras preguntas

Gary is 3 years older than twice the age of his sister, Elena
How does a country become a member of the European Union?
what is 176=8(1+3x) ?
Which four goals were included in La Follette’s plan? select 4 options A. reform the tax system B. eliminate monopolies and trusts C. reform elections D. impro
What is an example of imagery in Night by Elie Wiesel?
Absorption is the process in which cells
adding mixed numbers. Can someone help me correct my answer? 7 1/10 + 3 5/6 Answer: 1/10 × 3/3 = 3/30 5/6 × 5/5 = 25/30 7 3/3
I NEED THE ANSWER ASAP!!
please help me thank you
The function f(x) = -sqrt x is shown on the graph. Which statement is correct?