Using the similar triangles, an archaeologist can determine the original height of a pyramid, though its top has worn away. Find the original height.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

How can constraints be used to model a real-world situation?

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?