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3 years ago

7

four pencils and six pens cost a total of $8.90. Three pencils and five pens cost a total of $7.20. Find the cost of one pencil.

Enter your answer as a decimal without a dollar sign.

1 answer:

nignag [31]3 years ago

5 0

Answer:

3.8

Step-by-step explanation:

solution are in the pics

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Damm [24]

Answer:

$\boxed{D = 15.8\ units}$

Step-by-step explanation:

The coordinates are (0,9) and (-8,-4)

Distance Formula = $\sqrt{(x2-x1)^2+(y2-y1)^2}$

D = $\sqrt{(-8-0)^2+(-4-9)^2}$

D = $\sqrt{(-8)^2+(-13)^2}$

D = $\sqrt{81+169}$

D = $\sqrt{250}$

D = 15.8 units

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