The ratio of girls to boys in your class is 5 to 7. Two girls joined your class. Now the ratio of girls to boys is 6 to 7. How many students are now in your class.

34 + 0 + 18 + 26 in properties

Brian has a model collection of cars, trains, amd fire engines. He has 28 cars. The number of fire engines is 2 times the number of trains. He has 67 models in all. How many of each type of model does he have?

Fifteen new students are to be evenly distributed among three classes. Suppose that there are three whiz-kids among the fifteen. (a) What is the probability that each class gets one? (b) one class gets them all?

String A is three times the length of String B. Sarah cut String A into 8 equal pieces, and there was still 3 m of string left. Each of the equal pieces was 6 m long. What is the length of String B?

By Ohm's law, the current flowing in a wire varies inversely to the resistance of the wire. If the current is 5 amperes (A) when the resistance is 24 Ohms, for what resistance will the current be 8 A? K=? Z=?

A lottery has a grand prize of $160,000, two runner-up prizes of $20,000 each, eleven third-place prizes of $4000 each, and twenty-one consolation prizes of $800 each.

Re-write the decimal 045 as a fraction. Explain how you know your answer is correct.

Turkey weigh 7kg how long to cook

The velocity function for a particle is v (t) = 2t - 5 ft/sec. Find the displacement for the particle from t = 0 to t = 4 sec. (Give answer with units)

At the gym, Ava swims every 10 days, runs every 4 days and cycles every 5 days. If she did all three activities today, in how many days will she do all three activities again on the same day?