Jorge bought 3 DVDs, each for the same price, and a set of earphones for a price of $10. The total cost before tax was $49. What
1 answer:
Answer:
The cost of each DVDs is $ 13 .
Step-by-step explanation:
Given as :
The cost of earphones = $ 10
The number of DVDs bought = 3
The total cost of both items before tax = $ 49
Let The cost of each DVDs = $ x
So, According to question
The cost of earphones + The cost of 3 DVDs = $ 49
Or, $ 10 + 3 × x = $ 49
Or, 3 × x = $ 49 - $ 10
Or, 3 × x = $ 39
∴ x =
I.e x = $ 13
Hence The cost of each DVDs is $ 13 . Answer
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Answer:
Number of box seats = 1000
Number of lower deck seats = 5000
Number of upper deck seats = 4000
Step-by-step explanation:
Let number of box seats =
Let number of lower deck seats =
Let number of upper deck seats =
As per question statement:
...... (1)
Cost for box seat = $10
Cost for box seats = 10
Cost for lower deck seat = $8
Cost for lower deck seats = 8
Cost for lower deck seat = $5
Cost for lower deck seats = 5
As per question statement:
..... (2)
..... (3)
Putting value of in (1) and (2):
....... (4)
8 (4) - (5):
10000
By (3):
Now, by equation (1):
= 5000
Number of box seats = 1000
Number of lower deck seats = 5000
Number of upper deck seats = 4000