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 might Eisnehower have been more appealing as a presidential candidate than McArthur?

Which equation can be used to find the time, t, it takes for the ball to reach the ground?

there are 150 more passenger cars than trucks on the highway. for every 10 passenger cars there are 7 trucks. how many trucks are on the highway?

(2Q) Simply the expression.

How do price changes effect equilibrium A:by serving as a tool for distributing goods and services B:by preventing inflation or deflation from affecting the s

The mean of the data set is 40 and one standard deviation is 5. About what percent of the numbers fall between 35 and 50? 53.2% 68.2% 77.4% 81.8%

Help please and thank you

The primary purpose of ________ behaviors is to ensure that people, equipment, and other resources are used in an efficient way to accomplish the mission of a g

Can anyone help me with these questions?

img has the question