How can you mathematically prove that - 1*-1=1. Besides saying that negative times negative equals positive.

Which expression is equivalent to 1/3 (5x+3y) + 2/5y+7 A. 5/3x+7/5y+7 B. 15x+2/5y+7 C. 5/3x+2/5y+7 D. 15x+9 2/5y+7

One number is 7 more than another number. the sum of the numbers is 63. what are the numbers?

What is the unit rate 6 for $36

A rain gutter is to be made of aluminum sheets that are 28 inches wide by turning up the edges 90degrees. What depths will allow at least 66 square inches of water to flow?

Mrs Riggs got got some money for his birthday. He spent 1/5 of it on dog treats. Then, he divided the remainder equally among his 3 favorite charity's.

What is true about a pseudoscientific idea? It can be replicated and verified. It is improved with new information. It ignores parts of the method within an investigation. It tries to explain natural phenomena by analyzing, observing, and testing.

30 24 How do u find the area

Courtney and Chris thought of the same number. They multiplied the number by 3 and than increased the product by 5 for the final result of - 55. What number were they thinking of?

Ron walk 0.5 mile on the track in 10 minutes Stevie walk 0.25 miles on the track in six minutes find the unit rate for each walker in miles per hour who is a fast walker

Construct your own division problem with 2 divisor that has a quotient of 6 and a remainder of 12 but is not equivalent to 156 divided by 24 and also 102 divided 15