Mathematics, 15.07.2020 17:01 ElizabethF
Solve the system for each variable, and check your solutions. 20. x + y + z = 60 and x – z = y + 6 and y = 40 – x – 3z21. 2x + y + 4z = 3 and x + 2y = 2z -3 and 4z + 3y = 0 22. x + y + z = 1 and 2x – y + 3z = 4.5 and 4x -5y – 5z = -0.5Write a system of two equations for the following problem and solve. 23. A metal alloy that is made up of 15% aluminum is combined with a metal alloy that is 35% aluminum. If the result is 400 Kilograms of 27.5% of aluminum alloy, then how much of each alloy was used?Write a system with three equations for the following problem and solve. 24. If the digits of a three-digit number are reversed in order, then the sum of the new resulting number and the original number comes out to be 665. The difference of the two numbers is 297. The tens’ digit place is two times the hundreds’ place digit. What is the number?
Answers: 1
Mathematics, 21.06.2019 18:30, nena4200
Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.
Answers: 2
Mathematics, 21.06.2019 23:00, CelesteN64
In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.
Answers: 3
Solve the system for each variable, and check your solutions. 20. x + y + z = 60 and x – z = y + 6 a...
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