Answer:
out of how many candy bars?
Step-by-step explanation:
X + y = 24....multiply by -3
3x + 5y = 100
---------------
-3x - 3y = - 72 (result of multiplying by -3)
3x + 5y = 100
----------------add
2y = 28
y = 28/2
y = 14 <== 5 pointers
x + y = 24
x + 14 = 24
x = 24 - 14
x = 10 <== 3 pointers
Four hundred fourty-four plus two hundred twenty two is six hundred sixty-six
In step 1, the commutative property of addition is used since x + 5 is just equal to 5 + x
In step 2, the associative property of addition is used since x is grouped to the last term.
In step 3, the distributive property of multiplication is used since 3 is multiplied to the terms inside the parenthesis.
In step 4, multiplication is done.
Answer:
First let's measure how many ways can be the announcement done.
We have 9 people. So 9 options for first person and 8 option for the second.We get 72 possibilities. Since it doesn't matter a is with b or b is with a the possibilities go down to 36.
Now let's count how many ways we can make 2-girl pair
we can 5 options for the first person and 4 options for second. The same way divide this by 2 we are left with 10 possibilities.
So we got that there are 36 pairs possible.
At least find the probability divide the wanted outcome by the possible numbers of outcomes. 10/36=5/18
Answer 5/18