4 years ago

How do you solve questions that contain multiplication or division?

1 answer:

4 0

You would follow pemdas. parentheses, exponents, multiplication, division, addition, subtraction. you do the multiplication or division first and then solve the rest of the equation.

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If B is the midpoint of AC,AB=x+6 and AC=5x-6 then what is BC

lyudmila [28]

Look at the picture.

$\overline{BC}=\overline{AC}-\overline{AB} \\ \\ \Downarrow \\ \\
\overline{BC}=5x-6-(x+6)= 5x-6-x-6=4x-12$

BC is 4x-12.

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3 years ago

For a new neighbor, 100 acres of land will be split into 10 lots. How many acres will each lot have?

ahrayia [7]

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3 years ago

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Multiply the additive inverse of (-7/8) by the reciprocal of (5 1/2)<br><br>PLEASE HELP!

EleoNora [17]

Answer:

$\bold {$\dfrac{7}{44}$}$

Step-by-step explanation:

<h3> Reciprocal:</h3>

$\sf \text{The reciprocal of any number $\dfrac{a}{b}$ is given by $\dfrac{b}{a}$}\\\\5\dfrac{1}{2}=\dfrac{11}{2}\\\\\text{Reciprocal of $\dfrac{11}{2}$ = $\dfrac{2}{11}$}$