Answer:
<h2>n = -12</h2>
Step-by-step explanation:
2n + 5 = n - 7 <em>subtract 5 from both sides</em>
2n + 5 - 5 = n - 7 - 5
2n = n - 12 <em>subtract n from both sides</em>
2n - n = n - n - 12
n = -12
You do 14 divided by 16 which is 0.875 times by 100
which is 87.5 so that means 14/16 in a percentage is 87.5 %
Part C:
y = total cost
M = minutes
You can talk on the phone only 100 minutes per month
Company A:
y = 0.04M + 5
y = 0.04(100) + 5
y = 4 + 5
y = 9 $9 per month
Company B:
y = 0.10M + 2
y = 0.10(100) + 2
y = 10 + 2
y = 12 $12 per month
Company A offers the best deal because at Company A you have to pay $9 for 100 minutes per month, and at Company B you have to pay $12 for 100 minutes per month, so you have to pay $3 less.
Part D:
1.) With a budget of $30, Company A would allow me to talk longer on the phone. I know this because for Company A, you pay $3 less per month for the same amount of minutes as Company B. This means that I will save more money with Company A, and I can buy more minutes. (something like this)
Answer:
A) $1470
B) 5,88%
Step-by-step explanation:
B) Diana will end up with 100% -16% = 84% of the interest she earns, so her effective interest rate is ...
... 7% × 84% = 5.88%
A) Diana's investment earns ...
... 0.0588 × $25000 = $1470
Step-by-step explanation:
A) In order to calculate the interest , we can use the following formula :
Where P is the interest , P0 is the initial value, i is the interest and t is the time.
So , using P0 =600,i= 0.0005768 and t=27 ,we have :
Calculating only the interest, we have :
So the interest is $9.41.
B) He paid the final value calculated above, that is , $609.41.
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