Answer: 1.5 hours
Step-by-step explanation:
If Thiago and Brandon move in opposite directions at speeds of 80mph and 70mph then after 1 hour Thiago will have traveled 80 miles and Brandon will have traveled 70 miles.
Since they are in opposite directions then the distance is from
Then we know that after t hours have elapsed they are 225 miles
Then we pose the following equation
Now we solve for t
Answer:
(- 2, 4 )
Step-by-step explanation:
The solution to a system of equations given graphically is the point of intersection of the 2 lines.
The point of intersection is (- 2, 4 )
Thus the solution is (- 2, 4 )
Answer:
C
Step-by-step explanation:
translate everything from english to math
ex:
added is +
two time some number is 2*n
equals is =
so you get:
7 + 2*n = -3, solve and you get -5