All of the following can be the product of a negative integer and positive integer EXCEPT A) 1 B) -1 C) -2 D -4 E) -6
Which of the following can be the sum of two negative numbers? A) 4 B) 2 C) 1 D O E) -1
Sheila cuts 60 foot wire cable in equal strips of 4/5 of a feet each. How many strips does she make?
A) 48 B) 51 C) 60 D) 70 E) 75
Two teams are having a contest, in which the prize is a box of candy that the members of the winning team will divide evenly. If team A wins, each player will get exactly 3 pieces of candy and if team B wins, each player will get exactly 5 pieces of candy. Which of the following could be the number of pieces of candy in the box? A) 153 B) 325 C) 333 D 425 E) 555
Which of the following is an even multiple of both 3 and 5?
A) 135 B) 155 C) 250 D) 350 E) 390
Professor Jones bought a large carton of books. She gave 3 books to each student in her class and there were no books left over. Which of the following could be the number of books she distributed? A) 133 B) 143 C) 252 D) 271 E) 332
Homework dump? I'll do the first and the last, and maybe you can provide some input on the others.
First:
(+)(-) = -
(+)(+) or (-)(-) = +
Last:
since even multiples are always even, all the odd values are wrong.
Now, which of the others is a multiple of 15?
To find out which option is NOT a product of a negative integer and a positive integer, we can go through each option and determine whether it can be obtained by multiplying a negative integer and a positive integer.
A) 1: Yes, 1 can be obtained by multiplying -1 and -1.
B) -1: Yes, -1 can be obtained by multiplying -1 and 1.
C) -2: Yes, -2 can be obtained by multiplying -2 and 1.
D) -4: Yes, -4 can be obtained by multiplying -4 and 1.
E) -6: No, -6 cannot be obtained by multiplying a negative integer and a positive integer because the product of two integers with different signs is always negative.
Therefore, the answer is option E) -6.