I think so it is between 51~56%
The chance of picking a almond cookie the first time:
you have 6 cookies, 3 of them are almond
So the chance of taking an almond cookie is
The second time there are 5 cookies left, 2 of them are almond cookies
The chance of taking an almond cookie is
To know the probability of picking two almond cookies in a row, multiply the changes:
The chance of taking two almond cookies is 1/5
Answer:
y=8.50x
Where y is the total cost and x is the number of cars washed
Step-by-step explanation:
Divide 93.50 by 11 and you get 8.50. When you divide 195.50 by 23, you still get 8.50. Therefore, the cost of the car wash is 8.50 per car.
Answer: a²+2b+2ab
Step-by-step explanation:
(2a²+62+2b+1)-(a²+62-2ab+1)
2a²+62+2b+1 - a²-62+2ab-1
a²+2b+2ab
Mostly collect like terms
use associative property which is
(a+b)+c=a+(b+c)
and remember that:
you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2
you can only add like terms( like terms are terms that are same name like x or y are differnt, and like terms have same power exg x^2 and x^3 and x^1/2 and such
so first one
3b+11c-4c-c
since they are all c except for the first one term, just assign a number for each so it simplifies to c times(11-1)+b(3-4)=c(10-1b=10c-b or
you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2
second one9a-1+8c-8a+c
group like terms
(9a-8a)+(8c+c)-1=(a)+(9c)-1=a+9c-1
12c+5a+7-13c+4a
group like terms(12c-13c)+(5a+4a)+7
add like terms
-c+9a+7
the solution is 9a-c+7
-15-6c+3b-6c+9-2b
group like terms
(-15+9)+(-6c-6c)+(3b-2b)
-6+(-12c)+b=b-6-12c
the answers are:
10c-b
a+9c-1
9a-c+7
b-12c-6