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anonymous

  • one year ago

The equation below shows the area of a trapezoid, A, with a height of 9 cm, and one base 35 cm. : A = 9 over 2(b + 35) Which of the following formulas correctly solves for the other base, b? a. b = 2A over 9 + 35 b. b = 2 multiplied by A over 9 - 35 c. b = 2 multiplied by A plus 35, all over 9 d. b = 2 multiplied by A minus 35, all over 9

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  1. anonymous
    • one year ago
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    So \[\large \bf A~=~\frac{9}{2} (b+35)\]

  2. anonymous
    • one year ago
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    yes

  3. anonymous
    • one year ago
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    I know it's either B or D

  4. anonymous
    • one year ago
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    First step is to get "b+35" by itself. You can do so by multiplying the inverse of the fraction 9/2 on both sides.

  5. anonymous
    • one year ago
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    2a/9

  6. anonymous
    • one year ago
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    Correct. So \[\large \bf \frac{2A}{9}~=~b+35\] To get the b alone we subtract the 35 over

  7. anonymous
    • one year ago
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    but does it go on top with the 2a or next to the fraction

  8. anonymous
    • one year ago
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    It will be next to the fraction.

  9. anonymous
    • one year ago
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    Thank you sooo much!

  10. anonymous
    • one year ago
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    \[\huge \color{aqua}N\color{fuchsia}o \space \color{lime}P \color{orange}r \color{blue}o \color{maroon}b \color{red}l \color{olive}e \color{purple}m \ddot\smile \]

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