German Silver is an alloy composed of nickel, zinc, and copper in a ratio of 3:4:13.

How many kilograms of each metal are needed to make 4 kg of this alloy?

A scooter can travel 72 mi per gallon of gasoline and holds 2.3 gal. the function d (x) - 72x represents the distance d (x), in miles, that the scooter can travel with x gallons of gasoline. How many miles can the scooter go with a full tank of gas?

You purchase 115 shares of common stock at $62.32 per share. A few months later, you sell the shares for $85.32. No dividends were paid. Your stockbroker charges 3.8% commission on transactions of less than 150 shares.

Simplify the expression: l-3+1-5l

If the the temperature drops from 13.5°F to - 13.5°F, what is the change in temperature?

Have you ever been swimming in a pool, and your eyes were red when you get out? This means the chemicals in the pool were not adjusted correctly! More specifically, the measurement of the pool's pH was not quite right.

Write the equation in standard form 4x-3=5y

If John starts work at 8.845am and finishes at 5.15pm. He has 90 minutes of break. How many hours does he work in 5 days?

What is 5a=100 i need a answer?

What does 16/6 equal to as a whole number

How do you find the perimeter of a triangle?