To accommodate more depositors, new investment products were madeavanable to the small businesses and single entities. These investment products payvarying interest ranging from 3% to 10% per annum. Grabbing this opportunity to earn,a young professional has invested money in three accounts that pay 5%, 7%, and 8% inannual interest. She has three times as much invested at 8% as she does at 5%. If thetotal amount she had invested is PhP 80,000 and obtained interest for the year with anamount of PhP 5,750, how much money does she have in each account? Formulate thesystem of equations generated by this investment problem. Solve using Inverse MatrixMethod.

We make an equation from given information and then solve that equation.

Answered: To accommodate more depositors, new…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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2. Marvin is a sales manager receiving a monthly salary of Php 18 000.00, a commission of 5% on his sales, and a monthly transportation allowance of Php 5 000.00. He is also given an override of 1% on his representatives' sales. For the month of May, he sold a total of Php 110 000.00. His sales representatives sold a total of Php 380 500.00. Compute for his gross earnings.
In a hypothetical state, the government imposes a tax on the consumption of alcohol. The tax rate is set at 15% of the retail price of alcoholic beverages. If a bottle of whiskey retails for $50 before tax, what will be the total price including tax?
Mr. Smith is 35 years old. He has the following 2 goals: First goal: To retire when he is 60 years old. He expects to live up to 80 years old. He projects his annual retirement spending to be $200,000 in today's value. He will withdraw the annual spending at the beginning of each year when he retires. Second goal: To leave an amount of $5,000,000 to his son when he passes away when he is 80 years old. He has set up an investment account for the above2 goals a few years ago. Currently, there is $400,000 in that investment account. The rates of return for the investment account are expected to be 4% p.a. before he retires and 3% p.a. after his retires. If inflation rate is expected to be 2% p.a., how much should he save at the end of each year from now until he retires to achieve his goals?
Samsan Tech, had been mailing out coupons for sale of shares at a constant rate for 4 days, when they counted the coupons, they still had mail out and discover they had 120,000 left. After 7 total days of work they had 75,000 left. At what rate are they mailing coupons out? a. 17,000 coupons per day b. 15,000 coupons per day c. 11,000 coupons per day d. 13,000 coupons per day
Sarah's comprehensive major medical health insurance plan at work has a deductible of $750. The policy pays 85 percent of any amount above the deductible. While on a hiking trip, she contracted a rare bacterial disease. Her medical costs for treatment, including medicines, tests, and a six-day hospital stay, totaled $8,893. A friend told her that she would have paid less if she had a policy with a stop-loss feature that capped her out-of-pocket expenses at $3,000. The policy with the stop-loss feature has the same deductible and coinsurance requirement as Sarah's current policy. Determine which policy would have cost Sarah less and by how much. (Round your intermediate calculations and final answer to 2 decimal places.) Current policy Stop-loss feature No difference in Sarah's cost for this claim. Difference amount
A contractor imported a bulldozer for his job, paying Ph 250000 to the manufacturer. Freight and insurance charges amounted to Php 18000; customs, broker's fees and arrastre services, Php 8500; taxes, permits and other expenses, Php 25000. If the contractor estimates the life of the bulldozer to be 10 years with salvage value of Php 2000o, determine the book value at the end of 6 years, using a. Straight-line Formula b. Sinking Fund Formula at 8% c. Matheson Formula d. SYD Method
For the operation of part R-193, two operations are being considered. The capital investment associated with each operation is identical. Each completed part can be sold at Php 7 per part. Operation 1 produces 2,000 parts per hour. After each hour, the tooling must be adjusted by the machine operator. The adjustment takes 20 minutes. The machine operator for Operation 1 is paid $350 per hour. Operation 2 produces 1,300 parts per hour, but the tooling needs to be adjusted by the operator only once every two hours. The adjustment takes 30 minutes. The machine operator for Operation 2 is paid Php 192.5 per hour. Assume an 8-hour work day. Further assume all parts produced can be sold. Should operation 1 or Operation 2 be recommended? (upload the picture of your answers with your name and signature)
Jaspal Singh repays his total loan of ₹118000 by paying every month starting with the first instalment of ₹1000. If he increases the instalment by ₹100 every month, what amount will be paid by him in the 30th instalment? What amount of loan does he still have to pay after the 30th instalment?
During the last few days M Oil Company has requested rate increases several times. As a result of the granted rate increase, the following revenue amounts will be earned: P18.2 million, 14.9 million, P20 million, P19.2 million, P18.7 million, P15.4 million. P10.2 million, P22 million, P17.5 million, P14.6 million, P13.2 million, and P16.3 million. What is the median for the revenue amounts realized? Please show your solution and write readable thanks.

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