15(1 + n/100) = 75(1 - n/100)
15 + 0.15n = 75 - 0.75n
0.15n + 0.75n = 75 - 15
0.9n = 60
n = 60/0.9 = 66 2/3%
6% of n = 0.06 x 66 2/3 = 4
If you were to convert 3/4 and 4/5 to have the same denominator it would be 15/20 and 16/20.
Now we compare. This should be easy...
Its 4/5 or 16/20.
Answer:
The answer is B
Because the train will stop and speed decreases with increasing time
9514 1404 393
Answer:
(c) ∠ECF and ∠BCF
Step-by-step explanation:
Complementary angles total 90°. Here, 90° angle BCE is divided by ray CF into two complementary angles. They necessarily have a total of 90°.
∠ECF and ∠BCF
Answer:
(3, 0) and (−1, −8)
Equation's:
<h3>
Substitute equation 2 into 1</h3>
2x − (x² − 9) = 6
2x - x² + 9 = 6
-x² + 2x + 9 - 6 = 0
-x² + 2x + 3 = 0
x² - 2x - 3 = 0
x² - 3x + x - 3 = 0
x(x - 3) + 1(x - 3) = 0
(x + 1)(x - 3) = 0
x = -1, x = 3
<h3>Find values for y</h3>
If x = -1, then y = (-1)² - 9 = -8
If x = 3, then y = (3)² - 9 = 0
<h3>Solution Set:</h3>
(x, y) = (-1, -8), (3, 0)