It has become somewhat fashionable to have students derive the Quadratic Formula themselves; this is done by completing the square for the generic quadratic equation ax2 + bx + c = 0. While I can understand the impulse (showing students how the Formula was invented, and thereby providing a concrete example of the usefulness of abstract symbolic manipulation), the computations involved are often a bit beyond the average student at this point.
Answer:
3:4
Step-by-step explanation:
divide both sides by 6 to get simplest form
Answer:
The first deal:10 tacos for $7
Step-by-step explanation:
5 times 3.20 = 16$ and 10 tacos=$7
