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Your family orders delivery from a local restaurant
for dinner. There are 6 people in your family.
Some order the chicken dinner for $14 and some
order the steak dinner for $17. If the total bill was
$99, how many people ordered each dinner?
Let x = chicken
x + y =6
Let y = steak
14x + 17 y = 99

Respuesta :

mhanifa

Answer:

1 person ordered chicken and 5 people ordered  steak

Step-by-step explanation:

Since we have equations already given, lets solve to get the answer.

First, substitution

  • x=6-y

Then, as per the second equation.

  • 14(6-y) + 17y = 99
  • 84-14y + 17y = 99
  • 3y=99-84
  • 3y= 15
  • y= 15/3
  • y= 5

Then

  • x=6-y
  • x=6-5
  • x=1

We got 1 chicken and 5 steak orders

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