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3 years ago

15

Sara is cutting ribbon for a math project. She has four feet of ribbon that must be cut into 7 equal lengths. How long will each

piece of ribbon be

1 answer:

Anna007 [38]3 years ago

8 0

Answer:

Step-by-step explanation:

4ft/7p=(4/7)ft per piece (approximately 0.571 ft)

(4ft/7p)(12in/ft)=(48/7) in per piece (approximately 6.86 in)

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Igoryamba

Answer: $x=80$

Step-by-step explanation:

By definition, the sum of the exterior angles of a polygon is 360 degrees.

Knowing this, you can write the following equation:

$(x+8)+(2x+12)+(x+20)=360$

Then, you must solve for "x" in order to find its value. To do it, you can follow these steps:

1. You need to add the like terms:

$(x+8)+(2x+12)+(x+20)=360\\\\4x+40=360$

2. Now, subtract 40 from both sides of the equation:

$4x+40-(40)=360-(40)\\\\4x=320$

3. Finally, you must divide both sides of the equation by 4. Then:

$\frac{4x}{4}=\frac{320}{4}\\\\x=80$

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