T M - time that Maria drove;
49 * t C + 52 * t M = 191
t C + T M = 3.8 hours
t C = 3.8 - t M
49 * ( 3.8 - t M ) + 52 * t M = 191
186.2 - 49 t M + 52 t M = 191
3 t M = 191 - 186.2
3 t M = 4.8
t M = 4.8 : 3
t M = 1.6 hours
Answer:
Maria drove 1.6 hours.
Answer:
f^-1(X)= x/2
Step-by-step explanation:
Find the inverse
Answer: 24? =)
Step-by-step explanation:
The 2 is in the x place.
Let's substitute 2 for x in our equation.
2(2)-5y=11
Now, we can solve for y. (the other coordinate)
4-5y=11
Subtract 4 from each side.
-5y=7
Divide by -5.
y = -7/5 or -1 2/5 or -1.4
273,123
273,723
The second number is the same as the first one with only the hundreds place different