Answer:
Step-by-step explanation:
Firstly, find the total amount of pens
5 + 10 + 20 = 35, Total of 35 pens
White pens: 10/35
Not a red pen: 20 + 10= 30, 30/35
Calculate these to a percentage:
White- 10/35: 28.57%
Not a red pen- 30/35: 85.71%
(12-6i)-(-3-8i). First you have to combine like terms, to do that remove the parenthesis: 12-6i-3+8i (because there is a - in front of the second parentheses the signs inside change). Now combine like terms: 9+2i. So your answer is 9+2i :)
Answer:
Breaking up the multiplicand 8 into (5+3) allows us to apply the associative property of multiplication. See below.
Step-by-step explanation:
5*7 = 35. We want the product 8*7. Note that 8 = 5+3. Thus, 8*7=(5+3)(7) = 35 + 21, or 56.
Answer:
Verizon Wireless offers better plan
Step-by-step explanation:
Now it is easiest to calculate an yearly cost for both companies.
First calculate cost for Verizon
If y is annual payment and x is monthly payment
Relation is
y = 20 + 12x
y = 20 + (12)(20)
y = 260
So for Verizon wireless, annual amount is $260
Now calculate cost for Consolidated Communication
If y is annual payment and x is monthly payment
Relation is
y = 10 + 25x
y = 10 + (12)(25)
y = 310
So for Consolidated Communication, annual amount is $310.
Here by comparison we can see that the offer of Verizon Wireless is better in long term.
Answer:
B. -3 1/2y + 2
Step-by-step explanation:
Our expression is: 
.
Let's first distribute out that parentheses. Remember that distribution is simply taking the sum of the product of the outside term with each of the inside terms. Here, the outside term is 1/2 and the inside terms are 4 and -2y:
Now, we have:
We want to combine like terms, which means combining all the terms with y in them:
Remember that -7/2 can be written as the mixed number -3 1/2, so our final answer is:
-3 1/2y + 2
The answer is thus B.
<em>~ an aesthetics lover</em>
