Question

The temperature of magnesium must be at least 650 degrees for the metal to melt. A sample of magnesium is currently 255 degrees. The temperature of the magnesium is increased by 10 degrees every minute. Which inequality shows the number of minutes (m) needed to raise the temperature to the melting point?

Answer 1

choices:

A m >39.5
B m greater then equal to 39.5
C m > 87.5
D m greater then or equal to 87.5

Answer 2

(starting temperature) + (amount of temperature raised per minute)(number of minutes) must be greater than or equal to (melting temperature)

fill in the inequality with the appropriate numbers/symbols/variable, and solve for m