Answer:
Step-by-step explanation:
Incorrect. She forgot to change the sign while distributing.
5x - 3(4-x) = 5x - 12 + 3x = 8x - 12
Answer:
The smallest number that when divided by 35;56;91leaves a remainder 7 in each cases 3640+7 equals to 3647. HERE YOUR ANSWER
Answer:
Step-by-step explanation:
Calculate the slope from 2 points.
Substitute either point into the equation. You can use either (3,7) or (5,11)
Solve for b, which is the y-intercept of the line.
Substitute b, -1, into the equation from step 2.
A thumb-wrestling match requires two thumbs, so we can either suppose that we need at least two people

, or allow one to thumb-wrestle one's self. In either case, we'd have

, so let's just say we need a minimum of two players.
If we add one more person to the set of players, then the first two people would need to play 1 additional match each. So

.
If we add one more person, then the first three people would again each have to play 1 more match with the new person. So

.
And so on, so that in general, the number of games needed for everyone to play exactly one match with everyone else is given recursively by