Luca solved an equation as shown, and verified that his solution was correexplain what luca’s error is and why his answer is not completely correct.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth