Evaluate 7j+5-8k when j=0.5 and k=0.25

So first you would substitute j and k in the expression.

7(0.5)+5-8(0.25)

3.5+5-2

It would equal 6.5

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Let's plug in our values and evaluate.

7(0.5)+5-8(0.25)

3.5+5-2

8.5-2

6.5

Therefore, our answer is 6.5

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

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step-by-step explanation: