Solve real-world and mathematical problems involving the four operations with rational numbers and explain the meaning in the context of the answer. (BTW you have to show an example of real world and mathematical problems by using the operation, Multiplication, Division, Subtraction, and Addition. But with rational numbers.)

Answers

Answer 1
Answer:

Answer:

See Below

Step-by-step explanation:

To Clarify a rational number is just a number that can be made into a mixed fraction. Or another way of doing this would be to say a number like 1.50. So currency is a form of rational numbers.

EX: You decided to go to college but as a broke college student you couldn't pay for college (because it is expensive) so you decide to take out a student loan. For simplicity's sake let's say that you only need a $15,236.75 loan to add to the money you had saved up for college. However, the loan agency adds a 0.05 per month interest rate as soon as your 4 years of college are over. Knowing that interest adds up fast you decide to try to pay off as much loan debt as you can while still in college with your part-time job. You end up paying off $746.98 leaving you with only $14,489.77 left of the loan. The first month out of college you wind up with only $15,214.26 of college debt. Before the next month however you marry your college sweetheart and as a couple, you take on each other's debts making your grand sum for college debts $32,416.51. After five blissful years of marriage you wind up getting a divorce but because finances have been jumbled (real-world ish) you decide just to divide the $12,758.36 debt from college evenly between the two of you.

Subtraction:

  • 15,236.75-746.98 = 14,489.77

Multiplication:

  • 14,489.77x.05 = 15,214.26

Addition:

  • 32,416.51 = 15,214.26+17,202.25

Division:

  • 12,758.36/2 = 6,379.18

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Paulina works out with a 2.5 kilogram mass. What is the mass of the 2.5 kilogram mass in grams?

Answers

2.5 kilograms in grams is 2500 grams.

2.5kg = 2500g

The formula y = 64h gives the velocity v in feet per second of an object that has fallen h feet. Find thevelocity of an object that has fallen 92 feet. Round to the nearest hundredth.

Answers

Answer:

The  velocity of the object is 76.73 ft/sec

Step-by-step explanation:

* Lets explain how to solve the problem

- The formula y = √(64h) gives the velocity y in feet per second of an

 object that has fallen h feet

- To find the velocity of an object that has fallen 92 feet substitute h

  by 92 in the formula

∵ y = √(64h)

∵ h = 92 feet

∴ y = √64(92) = √5888 ≅ 76.73 feet/seconds

* The  velocity of the object is 76.73 ft/sec

1/5(2x-15) + 3/5x = 4 1/4

x=?

Answers

1/5(2x-15) + (3/5)x = 4 1/4
x*2/5 - 15/5 + x*3/5 = 4 1/4
x*2/5 - 3 + x*3/5 = 4 1/4
x*(2/5+3/5) - 3 = 4 1/4
x*(5/5) - 3 = 4 1/4
1*x - 3 = 4 1/4
x= 4 1/4 + 3
x= 7 1/4

the area of a rectangular shaped living room was 240sq ft. The longest side of the room was 20ft.What is the lenth of the small side of the room

Answers

240ft^2=20ft*x
x=12ft
The length of smallest side will be 12ft.

leslie needs 48 ounces of charcoal for her grill how many pounds of charcoal should she buy please help

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It is 3 because there 16 oz in 1 pound.48 divided 16 equals 3

5{-3.4k-7} + {3k+21}

Answers

The answer is −14k−14. Hope this helps.