Step-by-step explanation:
Considering speed of Noha = 4miles per hour
and speed of andrew = 2 miles/hour
The distance between Noha and andrew = 15 miles
Case 1: when they are travelling towards each other( opposite direction)
Then their relative speed becomes = 4+2 = 6miles/hour
Time taken to meet = Distance/relative speed = 15/6 = 2.5 hours
Case2: When they are travelling same direction
Then their relative speed becomes = 4-2 = 2 miles/hour
Time taken to meet = Distance/ relative speed = 15/2 = 7.5 hours
Add the equations to eliminate x.
Because the first equation has x and the second has -x, added together, they cancel each other out. When you add the rest of the equation, you get 2y=22. You can then divide by 2 to get y=11.
Answer:
Oh okay then so the answer is 38.
2x - 6 <span>≥ 6(x - 2) + 8
2x - 6 </span><span>≥ 6x -12 +8
2x -6 </span><span>≥ 6x -4
-6 -6
2x </span><span>≥ 6x -10
-6x -6x
-4x </span><span>≥ -10
x < 2/5</span>
Timmy is rolling a 6-sided die, what is the sample space? a {1, 2, 3} b {1, 2, 3, 4, 5, 6} c {1, 2, 3, 4, 5, 6, 7} d {1, 2, 3, 4
HACTEHA [7]
1,2,3,4,5,6 one for every side of the die