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

Lisa tapes three 7- inch by 9-inch pieces of construction paper together to make a happy birthday sign For her mom she uses a piece of ribbon that is 1
jacere : interject :: A. volvere : avail B. valere : convalesce C. salire : accelerate D. currere : care
What problem makes public goods necessary?
The two forms of oxygen, O2(g) and O3(g), have (1) different molecular structures and identical properties (2) different molecular structures and different prop
cube root (6.4 * 10^10)
Atoms of different isotopes of the same element differ in their total number of (1) electrons (3) protons (2) neutrons (4) valence electrons
Which substance is an electrolyte? (1) CH3OH (3) H2O (2) C6H12O6 (4) KOH
Which general formula represents the compound CH3CH2CCH? (1) CnHn (3) CnH2n–2 (2) CnH2n (4) CnH2n+2
How many constitutions has Missouri had? When was the last one accepted?
According to one acid-base theory, a water molecule acts as an acid when the water molecule (1) accepts an H+ (3) donates an H+ (2) accepts an OH– (4) donates a