Please, check 2 photos
Answers
Answer:
Step-by-step explanation:
a) 21x - 42 = 567 ( option 2 & 4)
( in option 2 )
rental cost per day = $ x
discount on rent = $42
no. of days the car was rented = 21 days
cost of rent for 1 day = $ x
cost of rent for 21 days = $ 21x
∴ total cost of rented car = cost of rent for 21 days - discount on total rent
567 =21 x - 42
or 21x - 42 = 567
(in option 4)
rental cost per day = $ 21
discount on total rent = $ 42
no of the th car was rented = x days
cost of rent for 1 day = $ 21
cost of rent for x days = $ 21x
∴ total cost of rented car = cost of rent for x days - discount on total rent
567 =21 x - 42
or 21x - 42 = 567
b) 12x + 6 = 42 ( option 1 & 2 )
( in option 1 )
cost per pizza = $ 12
no. of pizzas purchased = x
delivery fee = $ 6
cost of 1 pizza = $ 12
cost of x pizzas = $ 12x
total cost = cost of x pizzas + delivery fee
42 = 12x + 6
or 12x + 6 = 42
( in option 2 )
cost per pizza = $x
no. of pizzas purchased = 12
delivery fee = $6
cost of 1 pizza = $x
cost of 12 pizzas = $ 12x
total cost = cost of 12 pizzas + delivery fee
42 = 12x + 6
or 12x + 6 = 42
(the other options can't be correct because their values are in incorrect terms )
hope you understood
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