Aboat is traveling in a river that is flowing downstream at a speed of 10 kilometers per hour. the boat can travel 30 kilometers upstream in the same time it would take to travel 40 kilometers downstream. what is the speed of the boat in still water?

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?