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BishopPatton

  • one year ago

What is the value of a2 + 3b ÷ c - 2d when a = 3, b = 8, c = 2, and d = 5 A. 11 B. 12 C. 10 D. 8

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  1. BishopPatton
    • one year ago
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    @texaschic101

  2. BishopPatton
    • one year ago
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    @ganeshie8 @triciaal @nincompoop

  3. BishopPatton
    • one year ago
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    Please help

  4. BishopPatton
    • one year ago
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    @ParthKohli @phi @undeadknight26

  5. misty1212
    • one year ago
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    HI!! \[a^2 + 3b ÷ c - 2d \]\[3^2 + 3\times8 ÷ 2 - 2\times 5\]

  6. BishopPatton
    • one year ago
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    so what is the answer? I dont understand it.

  7. triciaal
    • one year ago
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    |dw:1443450369667:dw|

  8. triciaal
    • one year ago
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    |dw:1443450462074:dw|

  9. BishopPatton
    • one year ago
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    so what order do i solve it... i know PEMDAS

  10. phi
    • one year ago
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    If there are no parens in the original problem, you do not divide by (c-2d)

  11. phi
    • one year ago
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    misty substituted in the numbers for the letters \[3^2 + 3\times8 ÷ 2 - 2\times 5\] PEDMAS says to do powers first do you see any powers?

  12. phi
    • one year ago
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    or should I say "exponents" ?

  13. BishopPatton
    • one year ago
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    Yes

  14. phi
    • one year ago
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    can you simplify 3^2 ?

  15. BishopPatton
    • one year ago
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    so i would do 3 * 3

  16. phi
    • one year ago
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    yes

  17. phi
    • one year ago
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    \[ 9+ 3\times8 ÷ 2 - 2\times 5\] now do multiplies and divisions

  18. phi
    • one year ago
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    I would first tackle 3*8/2 notice the order does not matter: you can do 3*8 and then divide by 2 or you can do 3 * (8/2) either way what do you get ?

  19. BishopPatton
    • one year ago
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    9 + 24 ÷ 2 - 10 = 11

  20. BishopPatton
    • one year ago
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    24 ÷ 2 = 12 + 9 = 21 - 10 = 11

  21. phi
    • one year ago
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    yes, 9 +12 -10 we now just have addition (notice subtracting 10 is the same as adding -10) so we could write it like this 9 + 12 + -10 now we can do any order of adding up 9, 12, and -10

  22. BishopPatton
    • one year ago
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    Cool... Thanks soooooo much i wish i could give you 10000 medals

  23. phi
    • one year ago
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    yw

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