contestada

Which situation below has the highest constant of
proportionality?
A) 16 ounces of jasmine rice costs $4.80.
B) 32 ounces of white rice costs $6.40
C) 12 ounces of white rice costs $1.20.
D) 9 ounces of brown rice costs $1.80

Respuesta :

mhanifa

Answer:

  • A) k = 0.3

Step-by-step explanation:

Find the constant of proportionality k in each case and compare

  • y = kx

A)

  • 16k = 4.80 ⇒ k = 4.80/16 ⇒ k = 0.3

B)

  • 32k = 6.40 ⇒ k = 6.40/32 ⇒ k = 0.2

C)

  • 12k = 1.20 ⇒ k = 1.20/12 ⇒ k = 0.1

D)

  • 9k = 1.80 ⇒ k = 1.80/9 ⇒ k = 0.2

As we see k = 0.3 is the highest one

We need unit rates for all

#A

  • 4.80/16
  • 0.3

#B

  • 6.4/32
  • 0.2

#C

  • 1.2/12
  • 0.1

#D

  • 1.8/9
  • 0.2

A has highest

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