25% because 19+57= a total of 76 students and the percentage of 19 out of 76 is 25%.
19/76= 0.25
Answer:
b = 8/3 or b = -9/5
Step-by-step explanation:
Solve for b over the real numbers:
(5 b + 9) (8 - 3 b) = 0
Split into two equations:
8 - 3 b = 0 or 5 b + 9 = 0
Multiply both sides by -1:
3 b - 8 = 0 or 5 b + 9 = 0
Add 8 to both sides:
3 b = 8 or 5 b + 9 = 0
Divide both sides by 3:
b = 8/3 or 5 b + 9 = 0
Subtract 9 from both sides:
b = 8/3 or 5 b = -9
Divide both sides by 5:
Answer: b = 8/3 or b = -9/5
Here, y = -15 with x = -20
LCM of 15 & 20 is 60, so divide 15 & 20 from 60,
60/15 = 4 & 60/20 = 3
Now, multiply the results with intial values,
4y = 3x
y = 3/4 x
When y = 12,
x = 12 * 4/3
x = 48 / 3
x = 16
In short, Your Answer would be 16
Hope this helps!
Answer:
im sorry i dont know
Step-by-step explanation:
