Answer:
f(5x+3) = 10x + 9
Step-by-step explanation:
f(x) = 2x + 3
f(5x+3) = ??
Given this information, we know that x = 5x + 3. Therefore, to solve the new equation we need to plug 5x + 3 into the original equation
f(5x+3) = 2(5x+3) + 3
Now we distribute the 2
f(5x+3) = 10x + 6 + 3
Finally, combine like terms
f(5x+3) = 10x + 9
Just flip your fraction around and your answer will be 10/11
Answer:
The amount in checking will always be twice in any week.
Step-by-step explanation:
Let's say,
represents the week,
represents the saving account and
represents the checking account.
Balance in saving account in any week 
Balance in checking account in any week 
Translate the statement into mathematical equation. Remember to use " = " for word "is" in the given statement.
We have to find
for
.
Putting the values, we have:


Which means in each week the amount in checking is twice the amount in savings.
Best Regards!
<span>B) A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?</span>
It says to simplify so number 3 would be 12

Number 4 is

Number 5 is