Answer:
20
Step-by-step explanation:
75% of 20 = 15
I believe this is correct and hope it helps :)
<span>4, 8, 12, 16, 24, 48</span>
Let
x----------> number of weeks
y----------> saved money
we now that
<span>Michael begins with $20 and saves $5 per week
so
y=20+5x------> equation 1
and
</span><span>Lindsey begins with no money, but saves $10 per week
</span><span>y=10x-------> equation 2
</span><span>the number of weeks it will take for Lindsey and Michael to save the same amount of money is when equation 1 is equals to equation 2
</span>
therefore
20+5x=10x------> 10x-5x=20------> 5x=20-----> x=20/5-----> x=4 weeks
the answer is
4 weeks
I think its B
Correct me if this is wrong
I came up with 7+5(x-1)
7 is a fixed one time cost.
5(x-1). x-1 because you have already charged $7 for the first hour.
Checking to make sure it is correct
so if a person stays 1 hour
7+5(1-1)
7+5(0) = 7
This answer makes sense because they get charged $7 the first hour
so say they stay 3 hours
7+5(3-1)
7+5(2) = 17
This answer makes sense because they get charges $7 for the first hour and $5 for the other 2. so 7+5+5=17.
we can see that the function works
