Answer: At least 4/14 = 28.5%
Step-by-step explanation:
Select the location of a math book at the far end. The probability that the book next to it is a math book:
4 remaining math books, out of the 14 remaining books
In the middle, there are two potential spots adjacent to each book, so it could be higher - that’s why I say “at least” 4/14
Answer:
19.206
Step-by-step explanation:
First you need to find out 10% of 18.
You can do that by 18/100 which is .18.
Then multiply that by 10 which is 1.8 (10% of 18)
His hourly rate decreased by 3% AFTER his raise so you would find 3% of 19.8 and not 18.
You do the same process and divide 19.8/100
Then multiply this by 3 and you can get 0.594
That is how much his raise decreased by so you would subtract it from 19.8
19.8 - 0.594 = 19.206 (Round if needed)
Hope this helps
Substitute x = 6y + 21 into the first equation:-
6(6y+21) + 2y = 26
36y + 126 + 2y = 26
38y = -100
y = -2.63
x = 6(-2.63) + 21 = 5.22
answer (-2.63, 5.22) to nearest hundredth
3x+4x+5x=90
combine like terms
12x = 90
divide by 12
x = 7.5
sides: 3(7.5) ,4(7.5) ,5(7.5)
22.5, 30, 37.5
A = number of calls the first evening
b = = number of calls the second evening
c = number of calls the third evening
we know that she received a total of 99 calls, thus whatever "a", "b" and "c" are, we know that
a + b + c = 99.
"<span>The third evening, she received 4 times as many calls as the first evening"
c = 4a"</span><span>The second evening, she received 9 more calls than the first evening."
b = a + 9</span>

<span>
and surely you know how much that is. Well, she got that many the first night.
how many the second night? well b = a + 9
what about the third night? well, c = 4a.</span>