Answer:
4/5
Step-by-step explanation:
5x are women
9x are full class
9x - 5x = 4x
4x are men
is the ratio of men to women in its simplest form
Hope this helps ^-^
Answer:
Step-by-step explanation:
B and c
Answer:
9 mph
Step-by-step explanation:
Let Kathryn can go x mph and Stephanie can go (x + 5) mph.
Therefore, Kathryn can go 25.2 miles in hours.
And Stephanie can go 25.2 miles in hours.
Given that
⇒
⇒ 126 = x² + 5x
⇒ x² + 5x - 126 = 0
⇒ (x + 14)(x - 9) = 0
⇒ x = -14 or x = 9
But x can not be negative, so x = 9 mph
Therefore, Kathryn can ride her bike at 9 mph. (Answer)
Integers that are not whole numbers are like -5 -8 -7 and etc...
For perpendicular lines, m1m2 = -1 or m2 = -1/m1; where m1 and m2 are the slopes of the lines.
Here line 1 is 3x - 7y = 42
7y = 3x - 42
y = 3/7 x - 6; Hence m1 = 3/7
m2 = -1/(3/7) = -7/3
Required equation y - y1 = m2(x - x1)
y - (-8) = -7/3(x - (-3))
y + 8 = -7/3(x + 3)
y + 8 = -7/3 x - 7
y = -7/3 x - 7 - 8
y = -7/3 x - 15