book Maths Puzzle Numerical Ability

A roast was cooked at 325 °F in the oven for 4 hours. The internal temperature rose from 32 °F to 145 °F. What was the average rise in temperature per hour?

Read Solution (Total 0)

book Other Question

Can you please let me know if I am correct.

(x-3)squared (y-2)squared
------------ + ------------- = 1
9 4

is this an ellipse?
does a negative number x a negative number equal a positive number?

ex: -4x-4=

If so, can you explain the formula? Thank you