Anonymous
Anonymous asked in Education & ReferenceHomework Help · 8 years ago

I need help with these word problems?

Thank you for any help you can provide. I am really having trouble with some of this algebra homework.

Worldwide Shipping Company charges (4x + 280) dollars for shipping a package that weighs x pounds from Miami to Denver. Friendly Shipping Company charges (3x + 125) dollars to ship the same package. To convert a weight in kilograms to a weight in pounds, you multiply the number of kilograms by 0.454. How much does Friendly Shipping Company charge for a package that weighs 96 kilograms?

Answer

a.$255.75

b.$525.75

c.$552.75

d.$752.52

Worldwide Shipping Company charges (4x + 280) dollars for shipping a package that weighs x pounds from Miami to Denver. Friendly Shipping Company charges (3x + 125) dollars to ship the same package. How much more does Worldwide Shipping Company charge than Friendly Shipping Company? (Hint: Subtract Friendly's polynomial from Worldwide's.)

Answer

a.x+155

b.x-155

c.-x+155

d.-x-155

Worldwide Shipping Company charges (4x + 280) dollars for shipping a package that weighs x pounds from Miami to Denver. Friendly Shipping Company charges (3x + 125) dollars to ship the same package. Using your answer from #28, if a package weighs 259 pounds, how much can you save by shipping it via Friendly Shipping Company?

Answer

a.$144

b.$224

c.$414

d.$564

Worldwide Shipping Company charges (4x + 280) dollars for shipping a package that weighs x pounds from Miami to Denver. Friendly Shipping Company charges (3x + 125) dollars to ship the same package. Using your answer from #28, if a package weighs 401 pounds, how much can you save by shipping it via Friendly Shipping Company?

Answer

a.$656

b.$655

c.$556

d.$565

2 Answers

Relevance
  • 8 years ago
    Favorite Answer

    96kg(0.454lb/kg) = 43.58lb

    c = 3x + 125 = 3(43.58) + 125 = $255.75 (answer A)

    (4x + 280) - (3x + 125) =

    4x + 280 - 3x - 125 =

    x + 155 (answer A)

    W = 4(259) + 280 = $1316

    F = 3(259) + 125 = $902

    difference is 1316 - 902 = $414 (answer C)

    W = 4(401) + 280 = $1884

    F = 3(401) + 125 = $1328

    difference is 1884 - 1328 = $556 (answer C)

    - .--

  • Frank
    Lv 5
    8 years ago

    1) 96 * 0.454 * 3 + 125

    #2) (4x + 280) - (3x + 125) = (4x - 3x) + (280 - 125) =

    #3) 259 * (4x - 3x) + (280 - 125)

    #4) 401 * (4x - 3x) + (280 - 125)

    Simple rearrangement of the terms will give you the solution. Now that I've show you how, you just have to complete the final basic math.

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