After understanding the problem, formulate equations to determine the unknown. Let x be the price of one book. Equating Alana&Petra's expense with Angus' would be
5x + 4x +5 = 19x - 10
The 5 in the left side is needed because Angus' expense is $5 more. Also, the 10 on the right side represents the $10 discount. Solving the equation,
19x = 9x = 5+10
10x = 15
x = $1.5
Therefore, the book costs $1.5.
The distance is 101.
The only coordinate that changes is the y-coordinate; it goes from 2 to 103:
103-2=101
So Basically if you divide 3 by 75 you will get 0.04(which is equivalent to 4%). 4% of 3000=120 which is your answer
Answer:
Combination; number of ways = 15.
Step-by-step explanation:
Given that there are 6 people in the contest. So it means n = 6.
Two winners each win gift cards. So it means r = 2.
Each gift card is same, so both persons are equally important. It means the order does not matter here, so it is the case of Combinations. We will use nCr formula.
Total number of ways = 6C2 = (6*5)/2 = 15.
Hence, Combination; number of ways = 15.
Answer:
x < 9
Step-by-step explanation:
Distribute 4
4x -20 < 16
add 20 to both sides
4x<36
divide by 4
x<9
