Let x be the number of minutes for
his normal walk
On the way to the airport, for the
2/5 (or 40%) of his route, his speed is twice faster. Hence, the number of x
should be divided to 2. The rest of the route (60%) was on his normal pace. The
total minutes is 6. The equation is:
0.4(x÷2) + 0.6x = 6
<span>Solving for x, the number of
minutes for his normal walk is 7.5 minutes.</span>
Answer:
A: 9x-3y =5
Step-by-step explanation:
slope of the line = (8-(-1))/(-1)-(-4) = 3
so y = mx+ c , where m= slope
the equation 9x-3y= 5 has the slope 3 since we can make y the subject of the formula to get
y= 3x - 5/3..here m is also equal to 3
Answer:
A. The number quadrupled each week
Step-by-step explanation:
f(x)= 3(4)^x
As per the function, each week number increases 4 times
So the answer choice is A
Use the quadratic formula, x=

(don't know how to type the "-"sign in the formula, so there is only the "+" in the formula)
in this case, a=1, c=34, b is unknown
from the roots, we can tell that -b+

=2(5+3i)=10+6i
Note: the original equation already give b as -b, so -(-b)=10, b=10
using b^2-4ac=(6I)^2,
b^2-4*34=-36
b^2=100
you will also get b=10
Answer:
1, 7, 5, 9
7, 1, 9, 5
9, 5, 1, 7
But there are about 10 possible combinations.
Step-by-step explanation: