If the traslation is T(x,y)=(x-1,y+1) then:
Therefore A'=( -7,3).
You are borrowing $4,285 to purchase a computer using a 36 month installment plan. Determine the annual percentage rate (APR) an
d the monthly payment given that the interest charge is $513.26. Round your answer to the nearest whole percent and to the nearest cent. a. 8%; $134.27 c. 7%; $133.29 b. 8%; $150.36 d. 7%; $148.16
1 answer:
The total of principal and interest is
... $4285 +513.26 = $4798.26
Dividing this into 36 equal payments gives a payment amount of ...
... $4798.26/36 = $133.285
There is no formula that will give the interest rate as a function of payment, principal, and time, but the appropriate equation can be solved graphically or iteratively. The result is the interest rate for this payment value is about 7.497%.
These numbers are consistent with answer choice ...
... c. 7%; 133.29
_____
Of course, that answer can be selected simply on the basis of the payment value.
The interest rate corresponding to a payment of 133.29 is 7.4999264%, which still rounds down to 7%.
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Answer:
Ann would need 3 h to complete the remainder of the Job.
Step-by-step explanation:
Step 1.
The "speed" that each girl has to do the work is determined as:
- Tina:
, it means that Tina complete one twelveth of the job each hour.
- Ann:
, it means the Ann completes one eighth of the job each hour.
Step 2.
The amount of work done by Tina in 9 hours, is obtain multiplying by the "speed" calculated in step 1:
Amount of work done= . It means that <em>Tina completes two thirds of the work in 9 h.</em>
Step 3.
The remaining job is calculated as . It means that <em>still remains is one third of the job to be completed</em>.
Step 4.
The time required for Ann to complete the job is calculated dividing the remaining of the job by the "speed" of Ann to do the job.
. It means that <em>Ann would complete the job in another 3 hours</em>.