exam Maths Puzzle Numerical Ability

YESTERDAY YOU BOUGHT A HUGE WATERMELON THAT WEIGHS 100 POUNDS. A WATERMELON IS 90% WATER. YOU LEFT IT OUTSIDE IN THE HOT SUN. SOME OF THE WATER EVAPORATED, SO IT IS NOW 80% WATER. HOW MUCH DOES THE WATERMELON WEIGH NOW?

Read Solution (Total 0)

exam Other Question

|x-7|
----- < 4
3

x-7 over 3 is in absolute value form Minimizing cost.

A company uses the formula C(x)=0.02x2-3.4x+150 to model the unit cost in dollars for producing x stabilizer bars. For what number of bars is the unit cost at its minimum? What is the unit cost at that level of production.