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horrorfan [7]
3 years ago
13

2/8 + 6/12 what is that eqaul to

Mathematics
2 answers:
Papessa [141]3 years ago
8 0
\frac{2}{8} +  \frac{6}{12} \\ \\  \frac{1}{4} +  \frac{1}{2} \\ \\ LCD = 4 \\ \\  \frac{1}{4} +  \frac{2}{4} \\ \\  \frac{1+2}{4} \\ \\  \frac{3}{4} \\ \\ Answer: \fbox {3/4} \ or \ \fbox {0.75}
ArbitrLikvidat [17]3 years ago
8 0
\frac{2}{8} + \frac{6}{12} = \frac{1}{4} + \frac{1}{2} = \frac{1}{4} + \frac{2}{4} = \boxed{\bf{\frac{3}{4}}}
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Bond [772]

Given the system of equations:

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To solve it by substitution, follow the steps below.

Step 1: Solve one linear equation for x in terms of y.

Let's choose the second equation. To solve it for x, add 3y to each side of the equations.

\begin{gathered} x-3y=-24 \\ x-3y+3y=-24+3y \\ x=-24+3y \end{gathered}

Step 2: Substitute the expression found for x in the first equation.

\begin{gathered} 2x+9y=27 \\ 2\cdot(-24+3y)+9y=27 \\ -48+6y+9y=27 \\ -48+15y=27 \end{gathered}

Step 3: Isolate y in the equation found in step 2.

To do it, first, add 48 to both sides.

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Then, divide both sides by 15.

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Step 4: Substitute y by 5 in the relation found in step 1 to find x.

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