The correct answer for the original price of the novel is $20. Since 30% of $20 is $6. So if you'll deduct the discount, the price will go down to $14.
$20 * 30% = $6
$20 - $6 = $14.
The system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.
The parameters needed to model the inequalities;
- amount made by Opal working for a photographer = $15 per hour
- amount made in the soccer team = $10 per hour
- minimum amount Opal needs to make a week = $90
- maximum number of hours Opal needs to work = 20 hours
Let the number of hours Opal works for a photographer = x
Let the number of hours Opal works in soccer team = y
The first system of inequality in the given situation is represented as;
x + y ≤ 20
The second system of inequality in the given situation is represented as;
15x + 10y ≥ 90
Thus, the system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.
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Answer: 10 parts
Step-by-step explanation:
Here P represents the number of parts in the fraction
Thus, we can write,
Hence, there are 10, part in the fraction .