The answer would be 108. 108:45 can be simplified to 12:5.
The discriminant of a quadratic equation is useful in determining the nature of its roots. Further, it can be solved by the equation,
D = b² - 4ac
From the given equation, b = 3, a = 2, and c = -5. Substituting the given to the equation,
D = 3² - (4)(2)(-5) = 49
Thus, the answer is the fourth choice, 49.
9:15 is also equal to 3:5
Alto earned $ 225 and Sheryl earned $ 250.
Given that Alto and Sheryl both worked hard over the summer, and together they earned a total of $ 475, and Sheryl earned $ 25 more than Alto, the following calculation must be performed to determine how much each one earned:
- S = A + 25
- A = A
- A + 25 + A = 475
- 2A = 475 - 25
- A = 450/2
- A = 225
- S = 225 + 25 = 250
Therefore, Alto earned $ 225 and Sheryl earned $ 250.
Learn more about maths in brainly.com/question/25879518
Answer:
x ≤ 1
Step-by-step explanation:
5(x+3) - 7≤13
5x+3 - 7≤ 13
5x+15-7 ≤ 13
5x+15 ≤ 13+7
5x+15 ≤ 20
5x ≤ 20-15
5x ≤ 5
x ≤ 1
