Math 9: 2nd quarter Summative Test

Translate variation statement into mathematical statement: M varies directly as the square root of v

Translate variation statement into mathematical statement: The weight (W) of circular disc varies jointly as the square of the radius (r) and its thickness (t).

The current in an electrical conductor varies inversely as the resistance of the conductor. If the current is 12 ampere when the resistance is 240 ohms, what is the current when the resistance is 540 ohms?

• 3.6 amperes

• 5.33 amperes

• 7.2 amperes

• 27 amperes

The vendor says that the half kilo of meat costs ₱82. What is the variation constant?

• 1

• 2

• -256

• Radicand

• Index

• Base

• coefficient

• Power of a Product

• Product of Power

• Power of a Power

• Quotient of Power

• 2y

• 2

• 3