Answer:
9 is the answer
Step-by-step explanation:
3x+-15=12
you add 15 to 12 which is 27, 3x/27=9
Answer:
It will be less than 2 hours because in total that would be an hour and 30 minutes.
Step-by-step explanation:
We know it takes 18 minutes for him to walk to school, and we also know there is 5 days of a school week, so 18x5= 90 minutes, which equals to an hour and 30 minutes, less than 2 hours in one week.
Opposite angles formed by two intersecting lines are equal, so angle 1 is the same as angle 4. That means angle 1 = angle 5 as well.
<span>When a line intersects two parallel lines, the corresponding angles are equal. That is, if r and s are parallel, then the angles formed when l intersects r are the same s the angles formed when l intersects s. Angle 1 = Angle 5, Angle 2 = Angle 6, and so forth. Since we know angle 1 = angle 5, we can conclude that r and s are parallel.</span>
Substitute on equation 2, y = -4x + 7. so equation 1 becomes 2x - (-4x + 7) = 6x - 7 = 5. 6x = 12, so x = 2. from above, y = -4x+7 = -4(2) + 7 = -1