Answers: 1
Mathematics, 21.06.2019 21:00
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
Answers: 3
Mathematics, 21.06.2019 22:30
One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?
Answers: 1
Mathematics, 22.06.2019 01:40
Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.
Answers: 3
Mathematics, 22.06.2019 03:00
Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.
Answers: 1
Simplify 4to the 2 power and 4 to the 8th power...
Mathematics, 31.08.2021 16:50
Biology, 31.08.2021 17:00
Social Studies, 31.08.2021 17:00
Computers and Technology, 31.08.2021 17:00
Social Studies, 31.08.2021 17:00
Mathematics, 31.08.2021 17:00
Mathematics, 31.08.2021 17:00