Steven J.

solving a problem with 3 unknowns    Diane, Bob, and Jose served a total of 75 orders Monday at the school cafeteria. Jose served 3 times as many orders as Bob. Diane served 5 fewer orders than... more

a car traveled 220 miles at a certain speed. had the car been able to travel 15 mph faster, the trip would have been 1.5 hours shorter. how fast did the car go?

There are 4 red candies and 6 blue ones in a box. If a child randomly takes 3 candies one by one, find the probability that the first is red and the last two are blue.   NEED HELP ASAP FOR MY... more

Stuck on this question for my son's 7th grade math class.

Hello! I have the following sentences: 1: ∅ ∈ {0}2: {1} ∈ {1, {2, 3}}3: 2 ∈ {1, {2, 3}}4: 1 ∈ {R}I know that the number 1 is true and all the others are false, but I can't understand why.Thank you... more

1. Glenn collected 3 more bags of bottles for recycling than Paula did. They collected a total of 25 bags of bottles for recycling. How many bags did Paula collect? The domain of the solution is... more

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restrictions are:  uses each of the four operations at most once uses no parentheses and uses only the digit 3.