sfadiora sfadiora
  • 06-01-2020
  • Mathematics
contestada

Ben’s driving test had 40 questions and he correctly answered 12 more than he missed. How many questions did he miss?

Respuesta :

JustPotato
JustPotato JustPotato
  • 06-01-2020

Answer:

He missed 14 questions

Step-by-step explanation:

Total = Right + Miss ⇒ t = r + m

Right = Miss + 12 ⇒ r = m + 12

t = 40

Since t = r + m and r = m + 12 then:

t = m + 12 + m

t = 2m + 12

40 = 2m + 12

28 = 2m

m = 14

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