Answer: 60 to 100
Step-by-step explanation: There are 60 boys and 100 people in total. The ratio is 60 : 100.
Answer:
- 6. - 2. 6. 18.
Step-by-step explanation:
2*-2–2=
2*0 –2=
2*4–2=
2*10–2=
It's C .A corner is a vertice.
Let x be the rate per hour for Brown;
Then 2x is the rate per hour for Jones;
We have the equation: 375 = 5 * ( 2x ) + 5 * x ;
=> 375 = 10x + 5x;
=> 375 = 15x;
=> x = 375 ÷15;
=> x = 25mph ;
=> 2x = 50mph.
Dy/dx = dy/dt * dt/dx
xy = 4
y + x(dy/dx) = 0 by implicit differentiation.
x(dy/dx) = -y
dy/dx = -y/x
<span>dy/dx = dy/dt * dt/dx dy/dt = -2
</span>
<span>-y/x = -2 * dt/dx
</span>
y/(2x) = dt/dx
dt/dx = y/(2x)
dx/dt = 2x/y
When x = -3, xy = 4, y = 4/x = 4/-3 = -4/3
dx/dt = 2*-3/(-4/3) = -6 *-3/4 = 18/4 = 9/2 = 4.5
dx/dt = 4.5
