Can a system of equations have more than one solution

Which of the following sets of numbers could be the lengths of the sides of a triangle? a. 3.5 cm, 7 cm, 10.5 cm b. 3.5 cm, 7 cm, 14 cm c. 3.5 cm, 3.5 cm, 3.5 cm d. 3.5 cm, 5 cm, 10 cm

A pool can be filled by one pipe in 8 hours and by a second pipe in 12 hours. How long will it take to fill the pool with both people?

Will Has $2.25 in nickels and dimes. If there are twice as many dimes and nickels how many nickels and dimes does will have

You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfect score?

An airliner travels 45 miles in 5 minutes. What is it's speed in miles?

Find the missing number? 48/88=?/11

Steve leaves the beach at 3p. m. and drives along the highway at 55 mph. One hour later, his friend leaves the same beach, and drives along the same highway at 65 mph. How many hours will it take his friend to catch up to Steve? 10 hours 5.5 hours 8.

An aeroplane cruises at a speed of 750 km/h. Find how far it traves in 40min

Place the digit 2, 4, 7, and 8 in blank blank blank : blanton to create a division problem withe the greatest quotient.

If a 42.9 ft talk flagpole casts a 253.1 ft long shadow then how long is the shadow that a 6.2 ft tall woman casts?